Idle question, also computer problem
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Mountain Pass
Joined: Jan 2005
Posts: 157
Likes: 16
From: Everett
Idle question, also computer problem
Hi, I am new to the forum, but I do have a serious problem with my 92 F150. It started with a high idle, and has been a thorn in my side since. I have replaced my IAC, TPS, ECT, and throttle body gasket. I have done voltage checks on all sensers, and all but the new TPS is giving me problems. The TPS reads about 2.6. Even though it is a new TPS... So, then I put it on a code reader and I get codes 411 and 412.
411: cannot control idle at high revs
412: cannot control idle at low revs
I have been looking for other vacuum leaks and am still at a loss.
HELP
411: cannot control idle at high revs
412: cannot control idle at low revs
I have been looking for other vacuum leaks and am still at a loss.
HELP
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Senior User
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with some of the earlier computers, sometimes the only thing you can do is go to a good shop or even the dealer
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Mountain Pass
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From: Everett
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