I have a turbo which was installed last week. My question is this. Sometimes when I boost up to about 4-9 psi my check engine light comes on. Before I do this my car idles at about 500 rpm. After it's about 1100rpm. I mean I can drive it like it wasn't turbo and the light won't come on. It happens everytime I drive it and put some serious spool on the turbo. Any clue what this could be? I was thinking something along the lines of the MAP sensor reading too much air. Or there oxygen sensor is screwed. I have not clue. Please advise. Thanks

 

what kind of fuel management are you using?

 

um well it's very sufisticated. I am running a piggy back managment system connected to the stand alone AEM. Acutally I was just bullshitting. I don't have any fuel managment. They ( the garage that hooked the turbo up) said they remapped the fuel. Whatever that means. Let me know what you think now. The light even comes on a 4 psi sometimes.

 

You're going to have to pull the code before you can even guess on what's happening. A blind guess might be something like rich/lean condition, or maybe map related.

 

sounds like you need a missing link....

if you don't have engine management at all, there's no way to change the fuel maps. hope you have an fmu at least

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Integra GSR 95 &raquo;</TD></TR><TR><TD CLASS="quote">um well it's very sufisticated. I am running a piggy back managment system connected to the stand alone AEM. Acutally I was just bullshitting. I don't have any fuel managment. They ( the garage that hooked the turbo up) said they remapped the fuel. Whatever that means. Let me know what you think now. The light even comes on a 4 psi sometimes. </TD></TR></TABLE>


tell me you're kidding

 

If your Map sensor reads 7.5PSI or over it will throw a code and pulse the injectors. This will make the idle higher. You need bigger injectors and a tune or at least an FMU for now.

 

yeah you need a missing link...but what codes are you throwing, I wouldn't blind guess on something like that. But yeah I would think something air/fuel related too. I get codes thrown all the time but its cause of the air/fuel mix that I'm running according to my OBD scanner.