Please Read!!! Asap
10-19-2006, 01:00 AM
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Please Read!!! Asap A few weeks ago i had my car check. ses light on. it said insufficent flow from the cats. car was running fine intill last night. i took of hard from a light and came to another light an was easy on the gas. car shifting hard. could this be back pressure from the cats??? need help asap. i want to get this fixed tomorrow. also looked at the cats they didnt look to be glowing orange if that means something. if someone is around the area an wants to help phone number is 609-284-3279. thanks. 2000 SS
10-19-2006, 01:33 AM
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when I was stock manifolds and stock Y pupe. I took off my catback and ran is stright Y pipe. during RPMs above 4000, the car felt like it was gonna shut off and was stuttering. I dont know what it was from, it could be the the computer was learning the difference because of reduced backpressure.