yEP, MY jwt ecu RUNS LIKE CRAP
yEP, MY jwt ecu RUNS LIKE CRAP
Okay, heres the scoop.I put my jwt ecu in tuned for 370's, but when i went to crank the car up, it wouldnt stay running. It was BILLOWING WHITE SMOKE. Not blue like oil, but wihte...im hoping this is not a blown head gasket. What do you guys think?, also, this car is now having a huge surging problem. If i hold the thorttle down about 1500 rpms, the car sputters, then surges to around 3000 rpms, and then back down to sputtering, and then repeast itself.. It wont stay running unless i rev it, and then it spits out the white smoke again.
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:: orion ::
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Structure240sx
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Structure240sx
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McAdam
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au contrair, mon friar! I had a 280zx with way overactive and extremely leaky injectors that would hot soak and I would get BILLOWING clouds of white smoke when I started her in the morn! I ahd to rev the piss out of it to clear it out. it was embarrassing. black smoke is rich when it still runs, white is rich when it is dumping so much gas that the sparkplugs have trouble firing.
McAdam
McAdam
I checked the chamver after replacing the plugs...THEY HAD STANDING GAS IN THEM! i cant figure out what the damn deal is...new o-rings on all of them, and new plugs. I took the plugs out and also the fuel pump fuse and turned the motor over like 20 times. I talked to Jim Wolf today and he said that the problem is most likely in the injectors. Is there anyone in sc that know what they are doing, that can give me a friggin hand? Im tired of screwin with this and scratching my head. Also, does anyone know if the little washers on the insulators(little rubber grommets on the underside of the injectors caps that hold them to the rail) or there for a ground or not? Or are they just there to hold the rubber in? Also, does anyone know the best way to clear all of the gas out? I ttok the plugs out already and most of the gas sprayed out like a geyser....It was alot. But i have a feeling the the combustion chamber is still filling up with fuel. Hence the think white smoke.Someone help me out here.
I heard that the injector leak code was just a result of the strange way Japanese is translated into English, and that all it is is a rich code. What sensor would they use to monitor for a leaking injector? I don't think there is a fuel pressure sensor on the KA.
Have you pulled the injectors out of the manifold to see if they are leaking?
Have you pulled the injectors out of the manifold to see if they are leaking?
No codes are being thrown at all. And i dont believe thats the problem, and even if it was, how would i fix it....they all have new o rings. whats to leak? plus, these arent leaky, they are pouring feul into the combustion chamber. enough to actually fill up all the way to over the spark plugs. I got it all out, and then put new injectors in...leaner 285's form a j30 and it still blew smoke all out the back. WTF!!!!!!!!!!!!!!!
Yep, Im gonna change the oil before running it down the road.Porblem is, I cant get it running at all. I seriously dont think its a computer problem at all. What I do think is the problem is that I have a leaky injector. I have to pull the rail with the injectors still in it, turn the key to acc. When the rail pressurizes, then I should be able to see if the injectors are leaking, or which ones, if any.What I still dont get, is why the car wont start and is still acting like the same with the j30 injectors in it. I figured that it would lean out at idle enough to stabalize the car. If you read one of my posts above, youll se that the car was acutally running with the j30 injectors in it. Thats was when i thought that the j30 injecotrs were 370cc injectors. But when the injectrs were swapped out for the right ones is when this happened. Its got me totally boggled.
Oh, i can see it alright....after about 10 minutes of tyring to fix it and running it, it filled up cylinder number one all the way past the spark plug. ALso, Jim wolf told me that white smoke is raw, UNBURNED FUEL that is basically steaming off through the exhaust. I cant figure this one out. BAsically, black smoke is from running too much fuel, but not enough to foul out the plugs. black is too rich but still burning. white, is form running to much feul to the point that it is flooding.
as far as the program, yeah, im pretty sure that its right. Jim wolf did it, and they said that it was programed correctly. Im hoping that its just a leaky injector.
as far as the program, yeah, im pretty sure that its right. Jim wolf did it, and they said that it was programed correctly. Im hoping that its just a leaky injector.
I had a similar problem after I got my JWT ECU tuned for the 370cc injectors and a turbo set up. It was a combination of the MAF wiring and some bad gas. I used a factory shop manual extensively to help with all the system checks as the ECU codes don't really help in some cases. After I got the problem corrected and the ECU "learned" what it is supposed to be doing the thing runs sweet. Yes, the ECU does have to learn about the engine it is managing. If you don't have a factory shop manual, spend the $70 and get one, as it is invaluable. Also, spend the money (it's not much) the get your injectors cleaned and flow tested. It at least eliminates(or confirms) one of the variables. Good Luck!
I got them done real cheap ($50 for all 4) but I think Russ Collins at RC Engineering in California does them for about $25 each. That includes data sheets on each one as well as sonic cleaning and a rebuild of sorts (o-rings, screens, etc.). It is money well spent especially if you are dealing with used injectors, because as I said above, it eliminates one of the variables.
Having them cleaned at tested at rc is 10 a pop, but to have them fixed if they are fixable, is 28.50 a pop. Thats only if they can be fixed. She said if they are of on the resistance, then they are toast. If they are just clogged or bent- or leaking inside, then they can be. Outside leaks are not fixable-something like that. I talked to rc yesterday...im sending them off today or tommorow. Im really just tired of all of this.
What I am worried about is that today, when i walked around the car to look at the exhaust, i saw alittle puddle in it at the tip. I stuck my finger in it to see what it was...it was this black syrup like crap that stank like gas really bad. Im really hoping that somewhere along the line of flooding the motor,and filling the cylinder 1 up with fuel( i think it may have more than just that one, but all I could see was cyl #1. The shop light i was using wasnt that bright, and the other cylinder werent at tdc) i hope that i didnt mess up the rings and cause a bunch of blowby. The only good thing about the goop in my exhaust is that it looked more like the soot mixed with gas than oil. Also, im worried that maybe I am worried that also, maybe this somehow got so much pressure in the cylinder, that possibly it may have blown my headgasket, and now all that white smoke is leaking coolant thats burning off. This is my dilemma, and since I have no real way to check all of these variables save the injectors, Im kind screwed. No worries though, Im checking compression tonight though, maybe thatll tell me a little more. Any more suggestions anyone?
What I am worried about is that today, when i walked around the car to look at the exhaust, i saw alittle puddle in it at the tip. I stuck my finger in it to see what it was...it was this black syrup like crap that stank like gas really bad. Im really hoping that somewhere along the line of flooding the motor,and filling the cylinder 1 up with fuel( i think it may have more than just that one, but all I could see was cyl #1. The shop light i was using wasnt that bright, and the other cylinder werent at tdc) i hope that i didnt mess up the rings and cause a bunch of blowby. The only good thing about the goop in my exhaust is that it looked more like the soot mixed with gas than oil. Also, im worried that maybe I am worried that also, maybe this somehow got so much pressure in the cylinder, that possibly it may have blown my headgasket, and now all that white smoke is leaking coolant thats burning off. This is my dilemma, and since I have no real way to check all of these variables save the injectors, Im kind screwed. No worries though, Im checking compression tonight though, maybe thatll tell me a little more. Any more suggestions anyone?
any one wanna buy this sucker?
j/k i wont sell it ever-this is just really frustrating. anyone have a motor you may want to sell-low mileage, nothing over 80,000, for around 350-400 bucks-has to be s14 95 or 06...preferably 96. this particular 240 of mine is a 96 se 5spd non abs non lsd. but fast as nutz-well used to be.im about ready to put a bullet in her though.
j/k i wont sell it ever-this is just really frustrating. anyone have a motor you may want to sell-low mileage, nothing over 80,000, for around 350-400 bucks-has to be s14 95 or 06...preferably 96. this particular 240 of mine is a 96 se 5spd non abs non lsd. but fast as nutz-well used to be.im about ready to put a bullet in her though.
What really gets me is that this is my third 240 that i have built. My first one would put over 500 to the wheels with a 100 shot. second one was much more mild with about 350 rwhp on 18 pounds daily, third was bolt on stock block but made 292 rwhp on 12 pounds. Now this sucker thats supposed to be my wifes new car-I finally got her into the whole import scene;), comes up and has benn nothing but a pain in my arse. I just dont get it...why do the supposedly hard things go along easily, but the easy shyt is a real pita. go figure.