[Abdulisraddd]

Ok so I can’t seem to figure out the problem myself so I’m here to hopefully find an answer lol

Every time I do a hard pull right after my car shifts at redline my car will say engine reduced power, It would start misfiring , I would have to pull over turn the car off and back on and its fine it’s like nothing ever happened. Everything will be fine again unless I do some pulls. I keep getting engine reduced power and having to pull over on the freeway which really sucks .. any thoughts ? So weird that the problem would happen and just go away after turning car on an off . Thanks in advance you guys got me through so much on these forums !

[dpevans]

Seems to be some good information on the site. I would start by reading the code history and find out why the engine went into limp mode. Your computer is not liking something.

[marknagy13]

How many WHP you at? The only thing I could think of would be running out of fuel with e85 but most people have been fine with the mods you have. hmmm....

[Abdulisraddd]

Originally Posted by dpevans

Seems to be some good information on the site. I would start by reading the code history and find out why the engine went into limp mode. Your computer is not liking something.

I forgot to mention the code I would get.



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[Abdulisraddd]

Originally Posted by marknagy13

How many WHP you at? The only thing I could think of would be running out of fuel with e85 but most people have been fine with the mods you have. hmmm....

I have FBO. It even happens on 91 :(


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[Tdiddy7]

Do you have a throttle controller?

[Abdulisraddd]

Originally Posted by Tdiddy7

Do you have a throttle controller?

I do not.


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[ctrlz]

The D circuit on Chevy's appears to include three sensors.
Accel pedal position
TPS1
TPS2
This link is for Cruze:
http://www.autocats.ws/manual/chevro...520159.en.html

I suspect you are getting a fallout because the ECM is applying 5V to one of the TPS sensors and getting a reading out of the expected range. This is undoubtedly caused by some combination of the mods you have done to intake and exhaust which affect A/F mixture. Remember, when you go to wide open throttle you are in open loop, and the ECM will be looking for everything to be hunky-dory vis-a-vis the fuel maps it has on hand.

[Wolvie70]

With the mods you have I assume the car has been tuned, have you reached out to the person that did the tuning to see what might be the issue?

[kttxz06]

Originally Posted by Wolvie70

With the mods you have I assume the car has been tuned, have you reached out to the person that did the tuning to see what might be the issue?

I was thinking that. Need to reach out to the tuner. If there was one. I'd hope so. Or he can just go to the dealership. Doesn't seem like a major code being thrown.

[marknagy13]

Originally Posted by Abdulisraddd

I have FBO. It even happens on 91 :(


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No idea then, that was my best guess based on the evidence lol

[Abdulisraddd]

Originally Posted by kttxz06

I was thinking that. Need to reach out to the tuner. If there was one. I'd hope so. Or he can just go to the dealership. Doesn't seem like a major code being thrown.

I had just recently gotten tuned at a very reputable shop. (Addiction Motorsports in Canoga Park California) . He just told me that it’s not tune related because “tunes don’t change , mechanical changes” . He said something might be melted somewhere or rubbing . So I took it in and we still couldn’t figure it out. He said he doesn’t see any burnt wires .


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[Abdulisraddd]

I really appreciate the help I’m getting here guys


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[Wolvie70]

Based on what ctlz listed, have you tried taking out the ported throttle body and put the stock one back on? Be a quick and easy check there for TB issues.