articzap
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407 posts
1990 Nissan 240SX - CA Swap
Depew NY
3-18-2008
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| « Re: I wish a had a Chevy 350. (PapaBurgundy) | 4:24 PM 10/30/2008 |
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I had a stupid problem where my throttle return spring on the throttle body wasn't returning the TB to the fully closed position. It was held open the very slightest amount.Check it out.
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ca18detgabby
Online
3166 posts
92 s13 ca18det, 03 G35
lake mary fl
2-10-2007
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| « Re: I wish a had a Chevy 350. (PapaBurgundy) | 7:31 PM 10/30/2008 |
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it is stuck at 4k? as in it idles at 4k? or it hits the rev limiter at 4k?timing, checking and see if one of the secondary valves are open..... may want to check to see if the TB is fulling closing...... though 4k is high. please when you report back, give us a bit better discription. your info didnt help diagnose much. playing doctor is fun, but........
 extra stuff 
http://forums.nicoclub.com/zer...d=230
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: I wish a had a Chevy 350. (ca18detgabby) | 8:26 PM 11/1/2008 |
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Yeah my throttle was stuck open a tiny bit but of course after I fixed that it wouldnt start at all, and I still got spark and fuel. By secondary valve you mean the secondary butterflies right? Because those are gone. Someone should fully explain the timing procedure to me but the timing belt is on correctly and the cas has to be put on at tdc on the compression stroke correct? As far as a description goes its a rebuilt to stock motor with an sr turbo, a front mount intercooler, full 3" exhaust, and a ka-e tb and maf other than that its all stock. Its not idling at 4k its like its giving itself throttle but then bouncing off a rev limiter that is for reason at about 4k. Part of that could have been the throttle body being slightly open but like I said it wont start all the sudden so I dont know if it helped.
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float_6969
Moderator
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13193 posts
1995 Nissan 240sx
Topeka Kansas
8-26-2002
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Pull the codes and tell us what you get.
Resident CA Parts Hoarder #2 I think we all know who #1 is...
| Quote, originally posted by themadscientist » | Ask for directions to soapland, bring about Y50000 and don't take your mom.  |
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: (float_6969) | 8:39 PM 11/1/2008 |
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Currently getting nothing from the diagnostic lights on the ECU.
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float_6969
Moderator
Offline
13193 posts
1995 Nissan 240sx
Topeka Kansas
8-26-2002
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do they light up when the ignition is in the run position?
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: (float_6969) | 8:58 PM 11/1/2008 |
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Yup. What I dont understand is how it from starting great and running to nothing at all when all I did was mess with the tb and my friend pulled the cas off but put it back on exactly the same. When it wouldnt run we messed with the cas in every way we could think of but to no avail.
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float_6969
Moderator
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13193 posts
1995 Nissan 240sx
Topeka Kansas
8-26-2002
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You've got a wiring problem. The ECU isn't getting power, or it's got a bad ground somewhere. Bad ground is much more likely.
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: (PapaBurgundy) | 9:04 PM 11/1/2008 |
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I'm about to blow my car up because Ive been dumping all my money into it for the last six months and every time I take a step forward I take 7/8ths of a step back and Ive been without a car and almost broke the whole time, not cool when you got a wife and a two year old to support. Dammit I want to kill someone!
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: (float_6969) | 9:06 PM 11/1/2008 |
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I see what your saying about the grounds but we checked all of them not to mention we never messed with them in between the running and not running point.
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float_6969
Moderator
Offline
13193 posts
1995 Nissan 240sx
Topeka Kansas
8-26-2002
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Is the bolt tight on the ECU plug? Do you have instant messenger?
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: (float_6969) | 9:18 PM 11/1/2008 |
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Yup already messed with the ecu bolt and no on the the IM.
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: (float_6969) | 9:30 PM 11/1/2008 |
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I just remembered that my cas got dropped somewhere around the time it stopped running but I still have spark and fuel so that doesnt seem related. Are there any major sensors I'm forgetting to check? My tps has proper voltage, my o2 seems unrelated but is also good, my maf has proper voltage and works fine on my friends car, all grounds are good. Anything I'm missing?
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: (PapaBurgundy) | 9:45 PM 11/1/2008 |
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God dammit I hate cars. 
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zmannz
Offline
268 posts
s13 rb20 coupe or what ever is running
Rock Hill SC
12-12-2004
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| « Re: I wish a had a Chevy 350. (PapaBurgundy) | 7:11 AM 11/2/2008 |
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| Quote, originally posted by PapaBurgundy » | | By secondary valve you mean the secondary butterflies right? Because those are gone. |
When you say this, do you mean gone as in you took them out? Or, left them unhooked and therefore they are always open. Just wondering because on my old supra I was rebuilding my intake and ic fittings, and my friend took this plug out of the manifold that let all the intake pressure leak through it when we tried to start it which caused the ecu to go haywire and start throwing off codes s bad it would just limp. Found the plug, teflon'd abd replaced and the car worked great again. Basically it was a huge boost leak.
240's currently in stock...#1-s13 coupe rb20det-RIP, Owned by a deer on 10/30/09
#2-s13 hatch ca18 coming out rb20 and full suspension swap going in, whole chassis rewired
#3-s14 needs money
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articzap
Offline
407 posts
1990 Nissan 240SX - CA Swap
Depew NY
3-18-2008
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| « Re: I wish a had a Chevy 350. (zmannz) | 7:33 AM 11/2/2008 |
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People are all over the place and assuming the wrong things way to fast. This forum jumps to the wrong conculsions way to quickly.You messed with the TB and it won't start now. So lets narrow it down to it might not be getting enough air to start. Make sure the TB adjustment screw holds the blade open ever so slightly. Also check your ICV and idle screw on the manifold.
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MeanGreenS13
Offline
3222 posts
1993 Nissan 240sx
Vero Beach FL
8-20-2005
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| « Re: I wish a had a Chevy 350. (articzap) | 8:44 AM 11/2/2008 |
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was thinking the same exact thing. make sure the throttle body butterfly is open just ever so slightly, thats the only way your car will idle. if its closed all the way, you can start it if your playing with the throttle, but as soon as you try to let it idle, itll die... BEEN THERE, DONE THIS ONE haha
1997 SVT Cobra
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ks13
Offline
1343 posts
89 Silvia K's
Southern NH
9-3-2006
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| « Re: I wish a had a Chevy 350. (articzap) | 11:12 AM 11/2/2008 |
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| Quote, originally posted by articzap » | | People are all over the place and assuming the wrong things way to fast. This forum jumps to the wrong conculsions way to quickly. You messed with the TB and it won't start now. So lets narrow it down to it might not be getting enough air to start. Make sure the TB adjustment screw holds the blade open ever so slightly. Also check your ICV and idle screw on the manifold. |
A tb screw wont keep it from running, just idling.
If you dropped that CAS, I would start with that. I dropped mine a few years back and although it didnt fail, it drove me to the brink of insanity because I wasnt making the power I should have been. It finally failed on me the other day, all 4 of them. They are 20 year old optical sensors I think??
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articzap
Offline
407 posts
1990 Nissan 240SX - CA Swap
Depew NY
3-18-2008
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| « Re: I wish a had a Chevy 350. (ks13) | 11:44 AM 11/2/2008 |
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All he has done is change the TB opening so how is there no a completely irrevelant problem coming about from the CAS? Only work with what you changed. Only try one thing at a time and working in reverse order, otherwise you're jumping all over the place.
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: I wish a had a Chevy 350. (articzap) | 11:55 AM 11/2/2008 |
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So I'm a moron, I put the cas back in at tdc of the exhuast stroke and the throttle body was slightly open causing it to rev on its own. Idles and runs great now but it still wont rev past 3k rpm leading me to believe its in limp mode but I was too tired to think of that last night. I suppose I'll check and see if its throwing any codes. Any ideas on what would make it run in limp mode are welcome.
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articzap
Offline
407 posts
1990 Nissan 240SX - CA Swap
Depew NY
3-18-2008
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| « Re: I wish a had a Chevy 350. (PapaBurgundy) | 12:07 PM 11/2/2008 |
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If it won't rev past 3k that's probably MAF related. Is your TPS adjusted correctly? Double check your connections.
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: I wish a had a Chevy 350. (articzap) | 12:16 PM 11/2/2008 |
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Tps is good and adjusted properly and my maf is wired and working. I shouldnt say it wont rev past 3k but its limited at 3k, it revs great up till then without any bogging or hesitation.
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articzap
Offline
407 posts
1990 Nissan 240SX - CA Swap
Depew NY
3-18-2008
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| « Re: I wish a had a Chevy 350. (PapaBurgundy) | 12:19 PM 11/2/2008 |
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What happens when it hits 3k? Is it like a rev limiter because of fuel or spark cut or does it just not want to rev any higher?
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: I wish a had a Chevy 350. (articzap) | 12:25 PM 11/2/2008 |
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Its limited by fuel/spark cut, for a couple seconds after I reinstalled the cas properly it would rev great all the way to 7500 and then went back to limiting at 3k.
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: I wish a had a Chevy 350. (PapaBurgundy) | 12:28 PM 11/2/2008 |
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Someone should list the diagnostic light meanings because my computer almost explodes when I try to download the fsm.
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articzap
Offline
407 posts
1990 Nissan 240SX - CA Swap
Depew NY
3-18-2008
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| « Re: I wish a had a Chevy 350. (PapaBurgundy) | 1:36 PM 11/2/2008 |
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http://forums.nicoclub.com/zerothread?id=270584Is that what you're looking for?
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: I wish a had a Chevy 350. (articzap) | 4:38 PM 11/2/2008 |
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Excellent, thanks.
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: I wish a had a Chevy 350. (PapaBurgundy) | 5:44 PM 11/3/2008 |
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She runs! Thanks everyone for your help and suggestions, turned out to be my fault, as most car problems are. Just some bad maf wiring and a huge vacuum leak as well as a stuck open tb. Thanks again for the help.
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ca18detgabby
Online
3166 posts
92 s13 ca18det, 03 G35
lake mary fl
2-10-2007
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| « Re: I wish a had a Chevy 350. (PapaBurgundy) | 6:37 AM 11/4/2008 |
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If you would list all the things you did to correct your problem(in a bit greater detail) it woudl be very helpful for others...... would really appreciate it.  glad to see your rolling. 
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zmannz
Offline
268 posts
s13 rb20 coupe or what ever is running
Rock Hill SC
12-12-2004
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| « Re: I wish a had a Chevy 350. (PapaBurgundy) | 8:08 AM 11/4/2008 |
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| Quote, originally posted by PapaBurgundy » | | She runs! Thanks everyone for your help and suggestions, turned out to be my fault, as most car problems are. Just some bad maf wiring and a huge vacuum leak as well as a stuck open tb. Thanks again for the help. |
Hells yeah, I knew there was a leak in there. I second gabby's post... Glad its running!
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ks13
Offline
1343 posts
89 Silvia K's
Southern NH
9-3-2006
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| « Re: I wish a had a Chevy 350. (zmannz) | 9:52 AM 11/8/2008 |
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what led you to believe that the CAS needs to be stabbed with the motor at TDC, did you find this in the FSM??update this thread damnit.
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PapaBurgundy
Offline
279 posts
1991 240SX coupe SE CA18DET. 99 Dodge 2500 Cummins TURBO DIESEL 5spd.
orangeville Illinois
12-18-2007
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| « Re: I wish a had a Chevy 350. (ks13) | 5:16 PM 11/9/2008 |
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Sorry for not updating, I rarely get to my parents to use there computer. I really dont know how it happened but we just somehow wired the maf incorrectly, even though I swear I checked it a thousand times. The vacuum leak was the gasket at the back of the intake manifold being half missing and the stuck throttle body was its a ka-e tb and I didnt think to check if my throttle cable had enough play. About the cas to cam intercourse at tdc, I really cant remember where I heard that, but thats the only place it worked so I thats what I did.
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