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944/NA '86 - Engine starts and then dies (Read 422 times)
camhedge
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944/NA '86 - Engine starts and then dies
Jun 26th, 2020 at 9:24pm
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My 944 is having issues starting. The engine starts fine but then proceeds to immediately cut-out unless gas is applied.

One thing I have noticed is that if revved, the RPM hesitates to settle back down.

This issue has developed after an engine removal/refit. Whilst out of the car the following work has been done on the engine, by myself:
- Con-rod bearings replaced.
- Timing belts replaced.
- New crankshaft sensors and bracket (gap set)
- New distributor and rotor.

As part of troubleshooting I have:
- Rechecked the sensor gap.
- Tested and set the TPS as detailed on Clark's garage.
- DME relay bypassed.

Any advice/ideas would be greatly appreciated. Cheers!
  
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OhioTom
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I love Forum 1G - SP1!

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Re: 944/NA '86 - Engine starts and then dies
Reply #1 - Jun 30th, 2020 at 7:47pm
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I would check:
The TPS switch.
Engine temp sensor (wires are famous for corroding at the sensor).
Base idle rpm.

All of these things will throw the DME into a hissy fit.

  

Tom Simpson&&VW/Porsche freak.
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Dave W
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Re: 944/NA '86 - Engine starts and then dies
Reply #2 - Jul 1st, 2020 at 9:57pm
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Double and triple check that you have all vacuum lines connected.  It's actually easy to knock one off while reinstalling the manifold.
  

Dave - black 84 no longer exists. Sad 83 self destructed. All better now. Smiley
... Let's go hit some twisty roads! ...
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