Please Help!!! Car runs like CRAP
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On The Tree
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Joined: Mar 2007
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From: Northwest Indiana (Highland)
Please Help!!! Car runs like CRAP Hello all,
when I bought my car a few months ago, The previous Owner had done some things to it with HP tuners. Recently the car has been acting up really bad. IE, Sluggish - No throttle response, when I go WOT the car bogs really bad, I MEAN bad, wont even make it to 70mph, when I let off the gas, the rpm's dip and then come back up to where they should be.
I changed spark plugs, and It is still the same.
Today I did a scan, because I wanted to know WTF is going on, And to my suprise , Everything is all messed up,
For example, just cruising around my O2's constantly jump from 99 to 1000.
My LtFT and STFT are not even close to each other, Some banks are 10+ while others are -10+.
I have attached both my scan and the tune that I just took off of the car, Could you guys please help me to fix this problem , and give me a general direction to go in.
Thanks
Rich.
when I bought my car a few months ago, The previous Owner had done some things to it with HP tuners. Recently the car has been acting up really bad. IE, Sluggish - No throttle response, when I go WOT the car bogs really bad, I MEAN bad, wont even make it to 70mph, when I let off the gas, the rpm's dip and then come back up to where they should be.
I changed spark plugs, and It is still the same.
Today I did a scan, because I wanted to know WTF is going on, And to my suprise , Everything is all messed up,
For example, just cruising around my O2's constantly jump from 99 to 1000.
My LtFT and STFT are not even close to each other, Some banks are 10+ while others are -10+.
I have attached both my scan and the tune that I just took off of the car, Could you guys please help me to fix this problem , and give me a general direction to go in.
Thanks
Rich.
Last edited by Brief Encounter; Jul 26, 2007 at 10:44 PM.
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95% of that log is under 2500 rpm and 25 mph. There was one very short run to 4400 rpm but that was only 60% TPS. Not a very useful log to diagnose any problems, although nothing in the log looked out of sorts. I compared the tune to a stock one and didn't see anything that looked too bad that would cause any of the problems you described. I would start with giving your MAF sensor a good cleaning.