480 running and revving problems........

asterix · Post by **asterix** » Fri Jan 02, 2004 6:06 pm

Hi Guys -

Happy New Year!!!!!

A quick question as well.........

A friend of mine also has a 480 ES, and it has started giving strange problems.

Usually it starts and runs frine, but sometimes it coughs and won;t accelerate: also it will suddenly rev very high, splutter, and return to normal. It's very intermittent, and two garages have failed to find the problem.

He's replaced all ignition components except the coil, as well as the corrugated rubber trunking that goes from the air filter to the inlet manifold.

Any ideas much appreciated!!

Bruce

1991 480ES

MatBat · Post by **MatBat** » Fri Jan 02, 2004 6:15 pm

Has he checked the fuel pressure reaching the injectors?

volvofox · Post by **volvofox** » Sat Jan 03, 2004 3:41 am

----pffff........---- how long. .... Its very obvious??? swap your IV (CIS, or Idler valve, or stepper motor) with the friends one. and you reach to a point that this site is practically made of...

doug_480_turbo · Post by **doug_480_turbo** » Sun Jan 04, 2004 12:23 pm

take out the lambda sensor put in a bucket of warm water to clean it then chuck it back in. that should help