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LT1 air injection hose

Tiny
CAESAR250
  • MEMBER
  • 1997 PONTIAC TRANS AM
  • 100,000 MILES
Car running rich, and idles rough at low rpm. I just replaced head gaskets, which on that car requires tareing the whole top end down.
Wednesday, October 5th, 2011 AT 10:42 AM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I would start looking at the mass air flow sensor. It is between the air filter housing and the throttle body. Make sure the big hose is connected with no leaks and the wires are hooked up properly.

Roy
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Wednesday, October 5th, 2011 AT 2:16 PM
Tiny
CAESAR250
  • MEMBER
  • 2 POSTS
I chased the problem down to the plug wires. I didn't have a good connection on the left side. An Excellent way to figure this out is to start the car when it is cool and unplug each injector and listen for changes in the idle. If the car boggs with one undone its gettting fire and fule, if not then there you go.
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Tuesday, October 11th, 2011 AT 10:25 AM

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