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swap in a 561 ECU for 951 as a test ? 200 1993

posted by  someone claiming to be John Nuttall on  Thu May 30 13:01 CST 2013 [RELATED]

Hi All,

Car is '93 245 Auto LH2.4 951 ECU 187K miles...

I'm running down the spark side of a crank / no start condition using the Volvo Problem Solver and Bentley as references.

I checked the ECU impulses at the PowerStage and got a steady 1.0 volt - no oscillation - in KPIII.

So one or all of the following is bad:

1- Crank Position Sensor, resistance tested 167.5 ohms (range = 170-400) Certainly suspect (numerically) but I don't know if that reading means it's NFG
2- wiring between PS and ECU
3- ECU

Ordered a new CPS, and I'm running down wiring and connections.



Was thinking of swapping in a 561 ECU just to see what happens. The '93 does not have the cold start injector. I don't know how that interaction will play out.



I guess the other way to go at it would be to swap the 951 into the 561 car ('89 245 with good CPS) and see what happens....


Opinions ???


John






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New swap in a 561 ECU for 951 as a test ? [200][1993]
posted by  someone claiming to be John Nuttall  on Thu May 30 13:01 CST 2013 >


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