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Cold start/running

Tiny
TONYJANE04
  • MEMBER
  • AUDI A6
I have 1995 Audi A6 with ABK engine mileage 140.000 2.0litre. Hard to start when cold then until hot revs at 2000rpm have had fault codes checked all ok new plugs, idler valve, air filter fitted, am now running with injector cleaner in fuel, please help thanks.
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Wednesday, October 17th, 2007 AT 3:37 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the coolant temperature sensor, this one is used for cold fuel enrichment prior to the oxygen sensor taking over the fuel adjustment when it goes in the closed loop.

Sparkplugs is not a complete tune-up-others such as cap/rotor/fuel filter/air filter etc.

Also may want to check the throttle position sensor this one informs the computer where the throttle at all times.

Try running a scan tool to view the fuel trimming and other serial data stream.
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Wednesday, October 17th, 2007 AT 3:58 AM

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