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1989 Toyota Pickup Weird idle issue

Tiny
DZ NUTZ
  • MEMBER
  • 1989 TOYOTA PICKUP
  • 6 CYL
  • 4WD
  • MANUAL
  • 150,000 MILES
The truck idles fine until you step on the brakes. Then the idle drops and fluctuates badly. No vacuum leaks. Once you unplug the brake switch the problem dissappears. It only does it when the brake lights come on at idle. ECU checks OK and all grounds are good and the harness seems to be in good shape.

Am stumped on this one.

Dz
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Tuesday, February 26th, 2008 AT 12:11 PM

1 Reply

Tiny
PITBULL123456
  • MEMBER
  • 2 POSTS
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Tuesday, March 4th, 2008 AT 5:52 PM

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