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No Spark

MODNIZD

By MODNIZD,
in Engines & Forced Induction

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MODNIZD Explorer

MODNIZD

Posted
Posted

Hi guys,

I have a R33 S1.5 RB25DET Manual that's giving me some grief trying to get the car running going. I bought it at auction and when I got it home I found that the ECU had been chopped out. After 3 looms I now have one that works.

I have checked:

  • Diags. It gives me a Code 11. CAS
  • Replaced CAS (tried 2 more), reset codes, check and get 55. All ok. Then crank and still get CAS code again
  • No Spark
  • Cant hear injectors pulsing when turning the CAS by hand
  • It has Fuel pressure
  • CAS has Power at plug
  • Coils have Power at plugs
  • Everything is plugged in besides ABS Unit plugs (Series 1.5 with Series 2 loom) and one down near the ECU. Pics here
  • Cranks over fine

Does anyone know what else to check?

Cheers,

Phil

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ronnydotk Contributor

ronnydotk

Posted
Posted

Pull the plug off the ecu and cas. Check continuity at each end for each wire (at ecu pin out and at cas plug) by using a wiring diagram. then check for short to ground with each wire. Are the coils being switched? doesn't sound like coils or injectors would be pulsing if no signal from cas. If loom test up ok, and you have tried 3 cas' then it has to be ecu.

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MODNIZD Explorer

MODNIZD

Posted
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Posted

I was told it is a Series 2 Manual Turbo ECU. Ill get the part number off it tonight.

And Ill try those suggestions. Ill try and find part number on the ECU to Engine Loom too.

It cranks so I would assume its not the Auto Neutral safety switch. Ill double check anyway.

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