My corsa c 2006 1.4 giving an idle problem. I picked it up more when cold the revs will go up to 2k. I did the diagnostics, and the TPS sensor was reset, the MAP sensor was checked, all was replaced

Asked by Mar 03, 2017 at 02:12 AM about the 2006 Opel Corsa

Question type: Maintenance & Repair

All sensors were replaced and reset on diagnostics machine. No error light.
What else can be the issue.

4 Answers

76,335

Sounds like there is a vacuum leak somewhere. Snug up the intake manifold bolts, check the throttle body base gasket, and look for bad vacuum lines. Spraying carburetor along the intake gasket, and throttle body gasket works, you would notice a difference in the rpm of the engine.

2 of 2 people found this helpful.

Tx Rowefast. I will just dbl check the gasket. I've checked all the other scenarios. I even replace the water temp sensor. The last option before I may consider burning(lol), is to re-replace the MAP again. Maybe I can add a bit of gasket sealer?

76,335

No, just snug up the intake manifold bolts evenly. You can't do anything with the intake gasket but replace it. Check vacuum line connections, thats were they like to start leaking, the hose gets cracked at the connections.

OK. Checked all the above. Did replace the throttle gasket as well. Yesterday fine. This morning(cold start scenario) it played around(up and down), and then kept at 2000. Gonna replace the MAP sensor again and lets hope for the best. Do you have to adjust the MAP sensor like the TPS with the diagnostics machine?

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