C70 jan2000 idle speed erratic

sid dixon · Post by **sid dixon** » 31 Mar 2009, 04:15

hi guys my c70 idles erratically constantly jumping and falling between500rpm and 1200rpm any ideas what the problem could be. also any ideas where i can get a repair manual for this car as haynes manuals finish at 1999 for this particular vehicle

Post by **MadeInJapan** » 31 Mar 2009, 04:36

No manual unless you want to buy the VADIS DVD discs that often come up on eBay. What you have sounds like a bad MAF (mass airflow sensor). You need to have your diagnostic codes read with a scan tool to be sure. AutoZone will do this for you, among other places.

sid dixon · Post by **sid dixon** » 31 Mar 2009, 04:44

MadeInJapan wrote:No manual unless you want to buy the VADIS DVD discs that often come up on eBay. What you have sounds like a bad MAF (mass airflow sensor). You need to have your diagnostic codes read with a scan tool to be sure. AutoZone will do this for you, among other places.

Thanks for the info MadeInJapan keep you posted

Denisod · Post by **Denisod** » 25 Oct 2009, 09:54

I had the same issue over the past few weeks on my 2001 vehicle (its the 2.0 LPT version).

What I found was that it was actually the fuel injectors that was the cause and they just needed to be cleaned with an additive.

I added 1 12oz bottle to a full tank of fuel and as my car has 50k on the clock repeated the procedure when I next needed to fill the tank as I wouldnt say they had been cleaned before.

Car has been running fine since!

Added a link below to a similar additive to the once I used. Hope this helps you out.

http://www.federalmogul.com/en/Aftermar ... orCleaner/

hudi82 · Post by **hudi82** » 02 Feb 2010, 09:15

If it only happens during idling, I'd also check the PVC valve, I have this problem with my VW Jetta.