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1991 Isuzu Rodeo Question 1991 Isuzu Rodeo rough idle

Tiny
STACEY143
  • MEMBER
  • 1991 ISUZU RODEO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 156,000 MILES
I have 1991 Isuzu Rodeo with a 3.1L V6 TBI. The car will start but almost immediately stalls. The injectors are pushing fuel. In order to keep it running, I have to give it gas. I have tested the throttle position sensor, map sensor, idle air. They are all fine. Also the fuel pump is working properly. I also replaced the pick up coil. Even after all this, it continues to run the same way. I am out of ideas and could use some thoughts as to what else to look at.
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Saturday, October 9th, 2010 AT 3:39 PM

3 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi stacey143,

Is the Check Engine Lamp indicating?

Was any repairs performed prior to this occurring?

Did you check for vacuum leakages at the intake manifold?
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Wednesday, October 13th, 2010 AT 3:43 PM
Tiny
STACEY143
  • MEMBER
  • 2 POSTS
Yes the check light flashes. No repairs were made. There is no vacuum leaks at the intake.
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Thursday, October 14th, 2010 AT 8:44 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Get the trouble code retrieved to find out what is causing the CEL to flash.

https://www.2carpros.com/trouble_codes/obd1_trouble_codes/isuzu_codes.htm
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Thursday, October 14th, 2010 AT 8:57 AM

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