Gold FFM Sparky Posted June 25, 2022 Gold FFM Report Share Posted June 25, 2022 Sharing this interesting one from Denmark last week. Martin owns a stunning SE that had been off the road for many months due to an undetermined engine issue. The car would initially run seemingly consistently, but with little power, until turned off when warm. When restarted warm, it would run rough with evidence of missing, and be virtually impossible to drive. Felt like fuel starvation. Leave until cold, car would start and be marginally driveable again as long as it wasn't turned off. Martin had tried various things including coils to no avail. Blindly accepting the ignition diagnosis (naughty me) I first swapped the DI with a known good unit. Same issue. Tested spark, found OK on all 4. Then Freescan. Integrator, IAC and O2 were all showing silly numbers and knock count was high. Tested injector resistance. No.1 was only 1.3ohms. Fortunately we had a donor car to hand so I swapped out the offending injector. Engine runs perfectly. What baffles me is the fact that it would be sort of OK until the second start. Weird! Moral of the story: always check injector resistance. A simple task that may save hours. 2 Quote British Fart to Florida, Nude to New York, Dunce to Denmark, Numpty to Newfoundland. And Shitfaced Silly Sod to Sweden. Link to comment Share on other sites More sharing options...
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