84-85 Trucks & 4Runners 2nd gen pickups and 1st gen 4Runners with solid front axles

Rough idle

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Old 09-20-2011, 06:14 AM
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Rough idle

The truck runs fine while driving, but at idle it's rough until I tap the gas and it smoothes it self out.

This is what I have done.
  • Checked EGR valve
  • replaced BVSV valve
  • 3 cans of Seafoam
  • replaced o2 sensor (but need to replace again used the Bosch)
Any ideas before I go out and buy a new EGR valve?
Old 09-20-2011, 07:55 AM
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Guessing this is a 22RE engine?

Check your TPS idle setting:
- http://www.4crawler.com/4x4/CheapTri...roubleshooting
Old 09-20-2011, 08:02 AM
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How old are your spark plug wires, cap and rotor? I had rough idle at start up on rainy wet days....a little tune up and its all good.
Old 09-20-2011, 09:03 AM
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I did do a full tune up and in the last year I had.

new
timing chain
water pump
Oil pump
Old 09-20-2011, 09:05 AM
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Originally Posted by 4Crawler
Guessing this is a 22RE engine?

Check your TPS idle setting:
- http://www.4crawler.com/4x4/CheapTri...roubleshooting
Yes it's a 22re.
Old 09-20-2011, 06:06 PM
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can not use bosch o2 sensor? and i fixed my idle with a valve adjustment
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