Need Boosted Experts help with issues!!
Need Boosted Experts help with issues!!
Sapo I'm still having a power cut issue in my 4th and 5th gears..1-3rd all run great under boost through the whole RPM range, but when I'm on it in 4th or 5th the car starts going in an out of power, like a boost or fuel cut. The think is, my AF and boost are perfect while its happening. Fuel is around 11-11.4 and boost is at around 12lbs(set by wastegate and AEM tru boost). Now when I'm on the highway on 4 or 5, it will go through the whole RPM range at half throttle, but if I go 3/4-full it will hit the power cut issue....Earlier tonight I was in 4 and went to half throttle and REALLY slowly rolled on to full(like really slow, was almost shifted in to 5th by the time I got to full). Then I got off and mashed it again, power cut...Once again I can go full out 1-3 without an issue....But I soon as I get into fourth power cut....There are no check engine lights or anything
Any ideas would be appreciated..
Also it seems to have a rough idle sometimes, don't know if thats normal or not. Idle make the car sound like it has cams but it doesn't?
Car is a 1999 GS300 NA-t, 62mm turbo, 255 pump, 650cc injectors...Running Haltech FX10
Here is actually the first time it happend, just happend to be taping...
http://www.youtube.com/watch?v=6vq2W...ature=youtu.be
Any ideas would be appreciated..
Also it seems to have a rough idle sometimes, don't know if thats normal or not. Idle make the car sound like it has cams but it doesn't?
Car is a 1999 GS300 NA-t, 62mm turbo, 255 pump, 650cc injectors...Running Haltech FX10
Here is actually the first time it happend, just happend to be taping...
http://www.youtube.com/watch?v=6vq2W...ature=youtu.be
Lexus Test Driver
Joined: Mar 2001
Posts: 1,393
Likes: 0
From: 808state
Do you have a way to check your boost level? Boost gauge would help alot. Or better yet if you could datalog. I had a similar issue and found that I was having boost spikes that were causing the ECU to shut it down. I would definitely check that out first.
Are you still using MAF or have you converted to MAP sensor. If MAF, the car under boost is sending a value out of the preferred range of the ECU and could be causing it to cut out.
Are you still using MAF or have you converted to MAP sensor. If MAF, the car under boost is sending a value out of the preferred range of the ECU and could be causing it to cut out.
Do you have a way to check your boost level? Boost gauge would help alot. Or better yet if you could datalog. I had a similar issue and found that I was having boost spikes that were causing the ECU to shut it down. I would definitely check that out first.
Are you still using MAF or have you converted to MAP sensor. If MAF, the car under boost is sending a value out of the preferred range of the ECU and could be causing it to cut out.
Are you still using MAF or have you converted to MAP sensor. If MAF, the car under boost is sending a value out of the preferred range of the ECU and could be causing it to cut out.
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That-Guy
SC - 1st Gen (1992-2000)
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Jan 18, 2009 02:30 PM
