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-   -   i don't know where to start?? (http://www.focusfanatics.com/forum/showthread.php?t=309918)

pvttaylor07122 02-21-2013 10:48 PM

i don't know where to start??
 
I just bought my 03 svt focus and it has some problems Idk if one thing is causing it all i know my imrc is stuck open when i plug the mass air flow in i get horrible gas mileage o2 sensor is running rich and when its cold it jerks really bad and dies sometimes at stop also had a rough idle and no power at all

Elizabeth 02-21-2013 11:16 PM

Disconnect the IMRC cable. Better to have them closed, and have poor response over 4,000rpm, then terrible response below 4,000rpm.

pvttaylor07122 02-21-2013 11:22 PM

Thanks ill give it a shot
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sleepyboy 02-22-2013 02:31 AM

Moved to Technical Chat



Quote:

Originally Posted by pvttaylor07122 (Post 4602055)
I just bought my 03 svt focus and it has some problems Idk if one thing is causing it all i know my imrc is stuck open when i plug the mass air flow in i get horrible gas mileage o2 sensor is running rich and when its cold it jerks really bad and dies sometimes at stop also had a rough idle and no power at all



I'm not sure what your saying here? Bad gas mileage can be caused by the IMRC being stuck, MAF being dirty, or bad O2 sensor. Try cleaning the MAF with some MAF cleaner, that may fix it running rich and the O2 sensor may just be reading rich due to that. Running rich will cause bad gas mileage. I'm pretty sure that when the IMRC is unplugged it's stuck in short runner mode not long runner mode too.

pvttaylor07122 02-22-2013 01:06 PM

Well i unplugged it and it held it open took the mass air flow off and cleaned it the imrc started working right i think the put a cheap mass air flow sensor on it so i need to find the right one and a stock air box
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pvttaylor07122 02-22-2013 07:53 PM

Now im throwing all these codes p0177 p0102 p0113 p0135 p1518 p1520 p1121 and ill p1132 everything i do just seems to mess it up more


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