car is much slower than it should be, what should i check?
Registered User
Joined: Nov 2000
Posts: 1,148
From: AZ
Re: car is much slower than it should be, what should i check?
Originally Posted by 87camracer
something i would check is the o2 sensors. cheap and kinda easy to replace but will definately kill power.
another thing ive read but only read once, is that the LS1 ECU will pull timing if the gas in the tank measures below a 1/4 of a tank. something about it helping with gas mileage. dunno if thats true or not or even if you were driving with a low tank of gas that night either.
another thing ive read but only read once, is that the LS1 ECU will pull timing if the gas in the tank measures below a 1/4 of a tank. something about it helping with gas mileage. dunno if thats true or not or even if you were driving with a low tank of gas that night either.
Registered User
Joined: May 2002
Posts: 622
From: Nashville, TN
Re: car is much slower than it should be, what should i check?
If you're changed plugs and the fuel filter and assuming the wires are good, a simple treatment of GM Top Engine Cleaner, which is basically Seafoam but in a spray can, may help. If you're getting timing retard at WOT, it could just be from carbon buildup.
Jason
Jason
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