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No injector pulse and no spark

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Old 24 April 2014, 10:41 PM
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ezzy1
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Default No injector pulse and no spark

Swapped my blobeye lump after it blew and put a bugeye engine in to replace it , swapped everything from old engine injectors and plugs etc , now I go to start and now I get no pulse or spark ?

Any ideas
Old 25 April 2014, 12:20 AM
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TimH
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Sounds, perhaps, like an immobiliser issue. Still running the same ECU? Any other changes, or things that didn't quite "transplant" OK?
Old 25 April 2014, 12:25 AM
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ezzy1
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Normally imobiliser would stop the fuel pump priming though, this is the first issue of the engine swap , read many things about oil pump cranks being different etc or could be faulty cam sensor or crank sensor
Old 25 April 2014, 12:28 AM
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TimH
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Yep, true. Basic bug and blob engines are the same, with same crank and cam sensors etc. You said you'd swapped "everything"? What didn't you swap, as then we can perhaps narrow down to what might have been faulty on the new engine?
Old 25 April 2014, 01:25 AM
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The engine already had a cam sensor on it , the engine looked like it had been standing a bit so going to buy a new one tomorrow and find out ! Hopefully that might sort it
Old 25 April 2014, 07:24 PM
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Bump still no start after 2 sensors
Old 25 April 2014, 07:53 PM
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TimH
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What condition was that engine loom on the "new" engine like? At anything up to 13 years old, could it have dodgy wires? Or pins in the connectors dirty or not making good contact?

If you're not seeing a spark, nor the injectors pulsing, then I would think that the ECU is not seeing crank or possibly cam signals as it needs those to obtain "sync" before it will attempt to fire the engine.

Also check fuses to make sure none have gone?

Finally, I'm pretty sure there are workshop manual downloads linked to from the Technical Topics Archive section - the full manual will have diagnostic procedures to follow in the case of non-starting.
Old 26 April 2014, 09:14 AM
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Sounds like crank sensor to me, cant you plug it in on scanner?
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