Need Help ASAP with STS Problem
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Need Help ASAP with STS Problem
I have a 02 SS M6 stock bottom end with a T 67 STS 42 lb injectors 255 pump and meth.Put Predator STS tune in the car and went to the dyno today to have it tuned with HP tuner.When we turned the boost to 7 lbs the car started shooting white smoke from the exhaust and then the back of the engine bay around the intake.We shut it off and then looked to see if we could find a leak somewhere in the back of the motor and then the smoke disappeared.We started the car again and now the white smoke was coming out of the front of the intake passenger side and there was oil around the front of the intake manifold.We opened the oil filler cap and the white smoke was coming out of there as well.I have an oil return line going into the valve cover.The tuner said he thought the car broke a ring or knocked a hole in the piston.So he stopped the tuning and took it off the dyno.After letting the car cool down I drove the car home easy about a 100 miles with no problems as far as oil pressure or overheating or strange noises coming from the engine.Car felt like there was no decline in power levels.Car felt like there was an intermittent miss at idle only.What I am trying to figure out is if the engine had a bad ring or piston wouldn't it make noise or overheat or have low oil pressure.Anybody out there who is knowledgeable about STS turbos please give me what you think my problem is and if the STS turbo might have caused the problem and how I could go about step by step diagnosing the problem.Could the problem be bad vaccum,bad plug or wires or bad crankcase ventilation solenoid valve.It seems like the crankcase pressure was too high and that is why the white smoke was coming out of the filler cap.Anyhow I am not a wrench and know nothing about cars and would like an opinion as to what you think my problem is.The tuner made it sound like I would have to get new pistons etc.Any body have a similar problem with their STS setup.Any help asap would be appreciated. Any advice as to where I could take the car to have it diagnosed in the L.A /OC area would be appreciated.Thanks.
tmister@***.net
tmister@***.net
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a/f on STS
Originally Posted by Assassin
if the tuner was any good he would have been logging a/f ratio, what was it?, and also what was the timing and iat's when you saw the smoke?
The only number I have from the tuner is the a/f and that was 11.2.Somebody on the FI thread said they thought it might be a bad solenoid on the STS oil pump.Have you ever heard of that happening on a STS kit.
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I dont mess with sts only because of the oiling system, I think they make fine power and ease of install is great but you should seriously think about running a stand alone oiling system!!... it would be easy to test if its the pump, just turn it on and pop the drain to see if its flowing...
btw, this is how I have my pcv system hooked up, that could also be causeing you problems... https://ls1tech.com/forums/forced-induction/398599-pvc-pcv.html
btw, this is how I have my pcv system hooked up, that could also be causeing you problems... https://ls1tech.com/forums/forced-induction/398599-pvc-pcv.html
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STS Help
Originally Posted by Assassin
I dont mess with sts only because of the oiling system, I think they make fine power and ease of install is great but you should seriously think about running a stand alone oiling system!!... it would be easy to test if its the pump, just turn it on and pop the drain to see if its flowing...
btw, this is how I have my pcv system hooked up, that could also be causeing you problems... https://ls1tech.com/forums/showthread.php?t=398599
btw, this is how I have my pcv system hooked up, that could also be causeing you problems... https://ls1tech.com/forums/showthread.php?t=398599
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Thanks for Your Help
Originally Posted by RyneZ06
your a/f on the pull that we noticeed the smoke was around 10.8
tmister
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STS Help
Originally Posted by travie319
let me know what happens..........
.....cris
.....cris
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Originally Posted by travie319
so what happend?
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Originally Posted by tmister
Took the car to Jason and Rob at SP and they diagnosed it as a hurt motor,so I have to decide what we are going to do.I have an extended warranty and hopefully they will replace the motor under warranty.tmister.