So it almost runs

Discuss topics related to the CA18DE and CA18DET series engines.
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c-rad
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Well, I attempted to fire it up tonight. Cranked it over for almost a minute to get the oil pressure up. Plugged everything in and nothing. EGI relay was clicking like crazy, and I have no spark and no fuel. So I am like, "WTF?" Well, for the hell of it, I plug my stock eprom chip in and leave the #1 coil out to see if I am at least getting spark now. Crank it over and it sparks like crazy now and the car almost starts on 3 cylinders, lol. So I plug the coil back in and crank it over and it runs for about 3 seconds and dies. I am sure the chip I got is bad. I am thinking the spark plugs got flooded because I have 450cc injectors in there. I was thinking it should at least idle with the 450s and Maxima maf even with the stock eprom. Maybe it won't? Anyway, guess I will ask Rafi to burn me a chip now Now the troubleshooting begins.


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oversteer180
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geting close man!

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c-rad
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Anyone else have any ideas or comments about this?

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tyrannix
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well, what im doing is getting it to just start and run with (stock injectors, maf, ecu) then installing the powerFC, z32 maf and big injectors

eliminating variables is what you need to do

i would put in the stock injectors and maf if you still have them and try again (and check your gaps just to be safe)

and trying a stock ecu would be on my list too (just to get it started and running)

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rico05
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So you are sure you are getting fuel Chris?

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c-rad
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rico05 wrote:So you are sure you are getting fuel Chris?
Spark plugs smell like gas. I can hear the fpr regulating the pressure with the car in the "on" position.

Tyrannix- I don't have the stock injectors, but I do have an SOHC maf lying around.

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float_6969
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I don't think it would run very well with a maxima MAFS and 450's on the stock ECU.

Get stock stuff on there if you can, and try it, or get Rafi to burn you a chip.

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c-rad
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float_6969 wrote:I don't think it would run very well with a maxima MAFS and 450's on the stock ECU.

Get stock stuff on there if you can, and try it, or get Rafi to burn you a chip.
I am going to try and get Sean to drive all the way out here again with his 240 so I can troubleshoot. Seeing as he has known good working parts and pretty much the only person I know with a CA within 50 miles. Lastly, I have an eprom programmer on the way, although I am going to use the programmer here at school to attempt to burn a new chip probably tomorrow.

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float_6969
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Not to point out the blatently obvious, but you didn't put the chip in backwards did you?

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c-rad
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float_6969 wrote:Not to point out the blatently obvious, but you didn't put the chip in backwards did you?
LOL, no. I lined up the notch I am going to do a little more investigation today to see if I can come up with anything. The O2 sensor isn't hooked up yet either, but again, that should have nothing to do with it starting and idling.

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c-rad
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Ok an update. I figured I may as well check the codes and I got code 21. That is the ignition code. So I replaced the igniter and now I get code 55 so I guess that was the issue. It ALMOST starts now. It just floods out as soon as it starts to run. Wreaks of gas bad, lol. I am going to try and burn another chip tomorrow at school and see what happens.

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float_6969
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w00t! Get this bizitch runnin meng!

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c-rad
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float_6969 wrote:w00t! Get this bizitch runnin meng!
I'm working on it DOOD! I've been waiting a YEAR to get this damn thing running! My patience should have paid off by now!

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c-rad wrote:
I'm working on it DOOD! I've been waiting a YEAR to get this damn thing running! My patience should have paid off by now!
Be patient young grasshopper. You need to run your engine with the stock junk 1st and then graduate.

Dee

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c-rad
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boost_boy wrote:Be patient young grasshopper. You need to run your engine with the stock junk 1st and then graduate.

Dee
I would if I had it. People sell the damn stock injectors for almost twice as much as I paid for my 450s. And I got the Maxima MAF for like $17 at the junkyard.

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iliketocrash
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if it helps at all, my car runs and idles well with dsm 450's in it and stock maf. She's a little rich but nothing too bad. definitely no problems starting. fires right up.

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c-rad
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iliketocrash wrote:if it helps at all, my car runs and idles well with dsm 450's in it and stock maf. She's a little rich but nothing too bad. definitely no problems starting. fires right up.
With the stock EPROM and no SAFC?

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teddy
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Mine did the same thing as yours c-rad. I spent so much time and effort into prepping the motor, buying all the parts and getting it ready, and the night of trying to fire it up, it would only turn over and spits out mini fireballs(which is kind of like a mini fireworks show). Turns out that when I had taken out my CAS to remove the timing covers, my timing got out of whack somehow. Fixed the timing, and put some fresh gas in and it fired right up.

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c-rad
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teddy wrote:Mine did the same thing as yours c-rad. I spent so much time and effort into prepping the motor, buying all the parts and getting it ready, and the night of trying to fire it up, it would only turn over and spits out mini fireballs(which is kind of like a mini fireworks show). Turns out that when I had taken out my CAS to remove the timing covers, my timing got out of whack somehow. Fixed the timing, and put some fresh gas in and it fired right up.
You know, my friend suggested that last night and I am going to try that today. He said looses the cas bolts and have someone slowly turn the cas towards the advance direction while cranking it. I am going to try that today.

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c-rad wrote:
I would if I had it. People sell the damn stock injectors for almost twice as much as I paid for my 450s. And I got the Maxima MAF for like $17 at the junkyard.
Well, since you went through the hell of putting in your 450s, you're going to have to get the goodes to make this happen correctly. Be sure and check the the key on the CAS as well. Sometimes you can be a victim of the exhaust cam key breaking off or worse, the crank angle sensor's tip breaking off.

Dee

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c-rad
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boost_boy wrote:Well, since you went through the hell of putting in your 450s, you're going to have to get the goodes to make this happen correctly. Be sure and check the the key on the CAS as well. Sometimes you can be a victim of the exhaust cam key breaking off or worse, the crank angle sensor's tip breaking off.

Dee
CAS is good. Just checked it. I am thinking regardless of them being 450s, the engine SHOULD start and idle, right?

I am starting to think it might be a bad ground. Just for reference, these are the grounding points I have. Tell me if I am missing any--

Intake manifold --> chassis --> negative terminal (main engine ground)Small ring terminal near the igniter wiring (grounded onto intake mani)Small ring terminal coming off the injector wiring harness area (grounded onto intake mani)And the small ground on the coil pack subharness (grounded to the valve cover bolt)

Am I missing any?

Oh, and I tried advancing the timing a little and it made no difference.

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c-rad
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It runs!!!!!!

...barely. If I crank it long enough it eventually starts running but I need to feather the throttle to keep it running. At least thats a good sign. I think with the correct eprom in there it will stay running. I think the injectors might have been a little gummed up and it took constant cranking to get some good clean 93 through them. I am going to try and burn a new chip at school today so we'll see what happens. At least I am happy that I know I can get it to run, as crappy as it does.

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thats awesome c-rad. keep us updated.

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tyrannix
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+1

(yeah, you beat me, im still doing wiring.. there needs to be more hours in a day... i distinctly remember having more free/car time when i was single)
c-rad wrote:It runs!!!!!!

...barely. If I crank it long enough it eventually starts running but I need to feather the throttle to keep it running. At least thats a good sign. I think with the correct eprom in there it will stay running. I think the injectors might have been a little gummed up and it took constant cranking to get some good clean 93 through them. I am going to try and burn a new chip at school today so we'll see what happens. At least I am happy that I know I can get it to run, as crappy as it does.

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Thats great man and hopefully the new eprom will have her running like a champ.

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float_6969
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tyrannix wrote:+1

(yeah, you beat me, im still doing wiring.. there needs to be more hours in a day... i distinctly remember having more free/car time when i was single)
DITTO!

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c-rad
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Well, none of the teachers at my school have any idea where the UV erasers are, so there is no way for me to erase the chip I have. Looks like its going to have to wait til Friday when I get my Willem programmer.


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