Help!!! T/a In Trouble
And you paid 17,500?
a dealer was open at 1:30AM?
If your answer to the last two questions is YES....take it back....you paid to much and there are much nicer cars out there for less with no problems....
The codes are not a big deal though. P0171 and P0174 are saying the car is running lean on both banks. There may be a mechanical issue (vacuum leak), the aftermarket mass air may be causing it, the tune may be causing it.
The p0420 and p0430 are saying the cats are bad. So either the catalytic converters have crapped out (as they do on many f-bodies and are covered under GM's extended warranty) or someone removed them and never deleted the codes in the PCM.
P0442 is a small problem with the EVAP system. Loose gas cap, cracked hose, damaged charcoal canister, etc. Do a visual inspection and see what you find.
P0137 is pointing to the rear o2 sensor on the driver's side. Either the sensor is bad, the wiring is burnt, or someone removed it and didn't delete it in the PCM.
Fix the problems, take it to a local tuner to either put the tune back to stock or finish the tune correctly.
What motivated you to buy an overpriced car cross country without putting your eyes on it first?
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These cars don't get chips, they get flashed. The PCM is located near the firewall on the passenger side in the engine bay. So to take it out/modify it, it needs to be reflashed by someone with tuning software.
Don't buy the warranty, it's probably not going to cover ****. What you need is a good local f-body shop to go over the car for you before you blow even more $$ with the stealership in IL.


