injection problems with 1987 V6

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Apr 18, 2004 | 10:42 AM

ccloveraz

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Joined: Sep 2003

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injection problems with 1987 V6

1987 bronco II 2.9 v6, it idels irradically and lurches at speed when i am not depressing the throttle, i replaced the map, tps, regulator, O2 sensor, and injectors. i also have removed the egr tube and plugged it. it ran fine for 1100 miles and them started this crap/ any ideas of whats wrong

Apr 18, 2004 | 11:42 AM

EPNCSU2006

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From: Concord, NC

Are there codes stored in the computer?

Apr 18, 2004 | 11:49 AM

LxMan1

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From: Louisville,Ky.

Did you replace the IAC? This is what controls the idle speed. As they age, they can stick and make the idle irratic. It is located on the passenger side of the upper intake manifold.