1990 S-10

Tiny
KOLBY1185
  • MEMBER
  • 1989 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • MANUAL
  • 179,000 MILES
Skipping and backfireing when going one speed changed map egr vacuum control tbi gasket I can unplug map and runs good but uses alot of gas wat could my problem be
Saturday, December 18th, 2010 AT 5:21 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Run a live analysis on the computer and the MAP sensor to make sure it is functioning within spec. Something tells me you have a wiring issue or another bad sensor. If all is good, check compression to make sure you don't have a burnt valve or low compression.
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Monday, January 10th, 2011 AT 3:07 PM

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