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Engine runs-on

Tiny
EZAUTODIAGNOSTIX
  • MEMBER
  • 1999 OPEL CORSA
  • 1.6L
  • 4 CYL
  • FWD
  • MANUAL
  • 215,000 MILES
Dear sir, I am in South Africa so the mileage is in kilometers (sorry). This is the 160i model. The engine runs-on when the vehicle is switched off. My scanner cannot access pre-2000 and when I bridge the pins on the diagnostic plug I get no fault codes reading the flashing MIL. This engine does not have a distributor. Timing is regulated by the ECU. I do know that the head gasket was replaced recently.
Any help will be appreciated. Thank you.

I am a qualified Auto-Electrician. (I selected mechanic in the next question)
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Tuesday, September 26th, 2017 AT 11:30 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,973 POSTS
It sounds like you have a vacuum leak allowing air to enter the engine after shut down.

Here is a guide to help confirm the problem:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Please run this test and get back to us so we can keep helping you.

Cheers, Ken
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Wednesday, September 27th, 2017 AT 2:12 PM

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