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Old 04-02-2015, 07:18 AM
Overlander Overlander is offline
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Default My engine idles too fast - near 2000 RPMs...

My engine started idling too fast. It's intermittent - it comes and goes. It happened again yesterday after the engine was fully warmed up.

I've started a new thread on MUD about it, but not getting much help - need some help troubleshooting.

James
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Old 04-02-2015, 07:53 AM
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aprosise aprosise is offline
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Check to see if you have any vacuum leaks. You can use brake cleaner (the flammable kind) or a unlit propane torch. Once you find your leak it will change engine rpm's

Throttle position sensor maybe?
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Old 04-02-2015, 08:56 AM
Overlander Overlander is offline
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Quote:
Originally Posted by aprosise View Post
Check to see if you have any vacuum leaks. You can use brake cleaner (the flammable kind) or a unlit propane torch. Once you find your leak it will change engine rpm's
Which hoses contain the vacuum that I should examine?! All the rubber ones?
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Old 04-02-2015, 09:08 AM
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Your intake tube is probably cracked and the inflow of air is fluctuating into your mass airflow sensor causing it to get confused.
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Old 04-02-2015, 10:10 AM
Overlander Overlander is offline
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Intake tube is where I will start. I'll report back.
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Old 04-02-2015, 11:54 AM
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Also every time I undo the battery it will idle high on start up until it re-maps. Maybe you have a bad connection or battery terminal.
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1995 FZJ80 Lifted, Locked, Geared, and Built
1984 FJ60 Stock and Staying That Way
Sold1979/83 Fj40, 1987 Fj60, 2006 TRD Taco.
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