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1995 Chevy Silverado poor performance after installing head

Tiny
TPIBIRD305SPD
  • MEMBER
  • 1995 CHEVROLET SILVERADO
Engine Performance problem
1995 Chevy Silverado 190000 miles

I just installed a pair of flowtech headers that are direct fit to the stock exhaust. The truck has now lost power and feels like it has a misfire. About 6000 miles ago I replaced the air filter, plugs, wires, cap/rotor and fuel filter. I also added a throtle body spacer, hypertech power charger thats supposed to unshroud the throttle bores and elliminated the air box that attatches to the inner fender. The check engine light has not come on but the truck is deffinatley not running well.
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Tuesday, May 13th, 2008 AT 5:39 PM

1 Reply

Tiny
PEAR69
  • MECHANIC
  • 1,482 POSTS
When you changed all that stuff you changed the air flow characteristics of the engine. Your computer is set to a certain characteristic from the factory. It has the ability to compensate for small flow changes but installing headers and a TB spacer will probably put the computer out of wack. You must get your computer reprogramed to reflect the changes you made.
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Thursday, May 15th, 2008 AT 5:15 AM

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