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No Spark After 96' 2.0l Engine Swap With 05' Block Engine swap on a 96' Dodge Avenger Rate Topic: -----

#1 Guest_james_13021_*

  • Group: Guests

Posted 05 March 2009 - 07:39 PM

If you were a registered user, you would not be seeing this!

A guy dropped off a car a few weeks ago in pieces. It was an 96 Dodge Avenger that had lost it timing belt and the guy tried to fix it himself.

Anyways he had me swap an 05' Dodge Neon block with a rebuilt head from the same 96' Dodge Avenger back into the Avenger. The swap went entirely smooth, however I get no spark. I can the full pump kick on, and I have even bypassed relays for the Automatic shut down(ASD) & fuel pump relays to make certain they were not causing the vehicle not to start. I have no voltage to the ignition coil. I ran the harness from the Crank position sensor(CPS) by the oil filter on old 96'engine block to the front of the motor under the starter on the 05' engine block. (note: the guy had hacked all three wires to the CPS and wire nutted them before it got to me, so I wired them to the 05' sensor in the same orientation but I am not 100% certain that this is proper. The guy does not want to buy service manual for $100, so if anyone has the engine bay wiring schematics and could be real nice to share that would be great)

I have no voltage to the coil (and of course, no spark), but I can make the fuel pump work and bypass the ASD relay as well. Car cranks over great!

I have a full scanner with diagnostics, but there are no codes.

Also, the wires to the relays had cracked and exposed insulation, and probably had short across each other. I seperated the broken wires and taped them off.

The guy got another PCM from another car and we dropped that in to see if that would work, but still no spark.

I'm thinking it's an electrical issue with a bad part or more broken wires...

Any ideas?
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#2 User is offline   Wizard 

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Posted 05 March 2009 - 08:50 PM

The crank teeth for crank sensor changed once over the years from earlier to newer timing pulses format.

2.0/2.4 95-02 are SBECIII with crank trigger sensor on back of engine while 03+ have trigger crank sensor on front and use NGC pattern on the crank. Need pre 02 engine block or yank out the computer (losing everything else for correct computer for that 05 block with all the harnesses, hellva of a job to do), otherwise go with megasquirt but you lose everything else for the BCM and most of instrument cluster. Bottom line, get pre 02 engine block with correct crank.

That will be a issue.

Cheers, Wizard

This post has been edited by Wizard: 05 March 2009 - 09:05 PM

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#3 Guest_james_13021_*

  • Group: Guests

Posted 07 March 2009 - 05:43 PM

I'll look into the patterns, still have the old block out the 96' Avenger.

If the patterns are that different, I may look into swapping out the cranks and boring out the hole location on the 05' Block (there is an emboss at the location by the oil filter the same as the 96' block), and installing the original sensor back by the oil filter, and leaving the 05" CPS sensor in it's present position as a plug.

This would require me yanking the motor back out if the patterns are different to perform this operation.

Does anyone have a some pictures to show the differences....
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#4 Guest_james_13021_*

  • Group: Guests

Posted 15 March 2009 - 11:37 AM

Crank swap went great, I drilled out the emboss over the oil filter with a 3/4" diamter bit and ground the surface down to meet the the .025 space betweed the target wheel and the CPS (I did go a tad to far, but shimmed it to the .025" clearance).

I cleaned it all up and put it back into the 96' Avenger and runs great!, but it throws a p0351 code. I'll check the wiring and coil...but aside from that the car runs great!
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