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914World.com _ 914World Garage _ 75 2.0 runs amazing but won’t hold idle when hot

Posted by: Jett Jul 22 2020, 08:16 AM

Hello our 75 2.0 is running well, starts right up when cold, but after a spirited 20 minute drive the car will not idle. I can start the car up without issue and drive as long as I don’t stop.

Any ideas?

Thanks

Posted by: dr914@autoatlanta.com Jul 22 2020, 08:36 AM

closed points, leaking pressure sensor, stuck advance weights, idle screw not adjusted, head temperature sensor out of spec, fuel pressure too high, valves too tight,


QUOTE(Jett @ Jul 22 2020, 07:16 AM) *

Hello our 75 2.0 is running well, starts right up when cold, but after a spirited 20 minute drive the car will not idle. I can start the car up without issue and drive as long as I don’t stop.

Any ideas?

Thanks


Posted by: Jett Jul 22 2020, 08:41 AM

QUOTE(dr914@autoatlanta.com @ Jul 22 2020, 07:36 AM) *

closed points, leaking pressure sensor, stuck advance weights, idle screw not adjusted, head temperature sensor out of spec, fuel pressure too high, valves too tight,


QUOTE(Jett @ Jul 22 2020, 07:16 AM) *

Hello our 75 2.0 is running well, starts right up when cold, but after a spirited 20 minute drive the car will not idle. I can start the car up without issue and drive as long as I don’t stop.

Any ideas?

Thanks


Thanks George. The points are good, valves were just adjusted, so they should be good. We did just restore the throttle body, so will check the idle screw.

Posted by: Bleyseng Jul 22 2020, 08:43 AM

Idle speed is set when the engine is hot. So drive around and get the engine hot and then set the idle air bypass screw and the mix knob on the ECU. First check the points if they are in spec and not closed

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