White smoke at idle!
07-31-2008, 09:10 PM
#1
TECH Fanatic
Thread Starter
iTrader: (1)
Join Date: Aug 2005
Location: Galveston, TX
Posts: 1,202
Likes: 0
Received 0 Likes
on
0 Posts
White smoke at idle! Hi folks- Ever since I did my h/c swap, my idle has been iffy at best.
Last week I was driving and lost the tach signal and the car had ZERO power. I could barely get up to 25mph. After a couple cycles the SES light went on and the code was crank sensor. So I replaced the crank sensor. The power and tach came back, but now my idle is terrible and white smoke is coming out of the exhaust. Here is a data log along with my tune.
Also, the car made 402hp on a 2000 z28 with trick flow 215s, 228/230 cam, and M6. Isn't that a little low?
Can anyone help?
-Pat
Last week I was driving and lost the tach signal and the car had ZERO power. I could barely get up to 25mph. After a couple cycles the SES light went on and the code was crank sensor. So I replaced the crank sensor. The power and tach came back, but now my idle is terrible and white smoke is coming out of the exhaust. Here is a data log along with my tune.
Also, the car made 402hp on a 2000 z28 with trick flow 215s, 228/230 cam, and M6. Isn't that a little low?
Can anyone help?
-Pat
08-05-2008, 01:14 AM
#5
odd... I just replied to a post about a flashing SES light...the problem i had started with the SES light and thick white smoke. along with that I had a few other issues, maybe something to watch for. funny if it would be the same problem for both of you. I copied the post over from the other thread.
I had a bad injector in my car when it was stock... it stumbled right off the line, had lost a lot of power, threw the SES code, and smoked thick white smoke like it was eating coolant until I got above 2-2500rpms. coolant was fine, turned out the injector stuck open and was flooding the cylinder with gas. it would eventually have a bad vibration, like a miss (imagine that) and the occasional backfire. We took an infrared temp light to each of the exhaust primaries on the manifold, and found the one that was running cool- it was noticably much colder than the others. replaced that injector, and presto
I had a bad injector in my car when it was stock... it stumbled right off the line, had lost a lot of power, threw the SES code, and smoked thick white smoke like it was eating coolant until I got above 2-2500rpms. coolant was fine, turned out the injector stuck open and was flooding the cylinder with gas. it would eventually have a bad vibration, like a miss (imagine that) and the occasional backfire. We took an infrared temp light to each of the exhaust primaries on the manifold, and found the one that was running cool- it was noticably much colder than the others. replaced that injector, and presto
Last edited by nine-eight; 08-05-2008 at 01:22 AM.
