Mine has done this in the past due to a poorly sealed intake manifold. Some SOB had used a cookie to grind the intake gasket surface and caused a vacuum leak from #1 to the intake valley. Other...
Type: Posts; User: 99 Blazer
Mine has done this in the past due to a poorly sealed intake manifold. Some SOB had used a cookie to grind the intake gasket surface and caused a vacuum leak from #1 to the intake valley. Other...
No ECM swap is required, the factory ECM is fully programable with HP Tuners.
Glad to see a fellow mini-mouse lover! I've been tuning my 4.3 and found the same lack of communal info.
There will be a gain of 50+ HP and 80 ft-lbs. on a stock motor. If it weren't for insurance rates and the EPA, then maybe.