hope someone can shed some light on this one, mercedes 190E 2.0 1992 with mechanical injection. it wont start, we can get it running using easy start but it wont idle and the throttle needs to be pumped or held above 2000rpm to keep it running, theres a good spark, all the vacuum pipes are good and not disconnected, there are no leaks anywhere on the inlet manifold etc. we've replaced the fuel pump on advice from mercedes. (thanks guys, £150 down the drain) we've checked the relay and relevant fuse behind the battery (which i believe is part of the cold start injector?) I'm pretty sure the problem is fuel related as once ive managed to fire it up using easy start (aerosol) it runs great above 2000 rpm, but anything under and it dies. any help greatley appreciated. regards. steve UK.
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19 years ago