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On Thu, 03 Jun 2004 22:34:44 -0500, Jim Adney wrote: >On 3 Jun 2004 at 14:19, Mark Healey wrote: > >> When the engine gets hot it starts hesitating, especially under load. >> It hesitates a little when cold but not much. I thought I could live >> with this for a few short errands but it died and wouldn't start. You >> could hear it trying to ignite but no go. > >Check your charging system regulating voltage. I know the VR is new to you, but >I got the impression that it is a used one. They are often bad, and low system >voltage will make the FI run rich and give symptoms like this. Here are the current test I've done. Valves-OK Points-OK Timing-OK Charging voltage 12 at idle 13 at higher revs. ECU grounds-OK, measured through the connector to the ECU. MPC windings - OK measured as per Muir Power to ECU - OK Injector Grounds - OK I know that there are resistance checks to do to some other components but I couldn't find them in Muir. What do I check now? Mark Healey 71 FI auto square 71 FI manual square marksvw@healeyonline.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org