3500 SWAP

[FNJ26]

I SWAPED A 3500 INTO A 95 BERETTA.CAN NOT GET THE ECM TO SEE CRANKING RPM.ANYONE MADE THIS CHANGE YET?

[bszopi]

First, turn caps lock off... very annoying.

Second, you won't see cranking RPM via the stock 3500 crank sensor because it is a COMPLETELY different triggering setup than the older engines. Instead of going to the ICM and then the ICM sending a coded signal to the PCM, it 3500 sends the signal directly to the PCM. And then there is the issue of the 3500 having a 56x trigger versus the old 7x trigger...

[geoffinbc]

You need a stand alone PCM man. Or retrofit the 3500 PCM.

[Doubt_Incarnate]

if i remember correctly, the 3500 has a new wierd looking reluctor wheel on the crank, but i think it was possible to knock that off and the old style stock wheel was under neath, maybe he can simply remove the new reluctor and use his stock ecm and cps.

[bszopi]

The old JOURNAL is still there, but the actual trigger is not machined into the crank. Therefore, he would have to disassemble the enitre motor, pull the crank out, get it machined, put the engine back together, etc....

[CNCguy]

If you aren't in a rush, I happen to know someone who is making a conversion kit to use a 3500 with the older ECMs.

[tejohnson]

Or, if the PCM could be configured for the amount of pulses it sees per revolution. Not sure if it is in the binary part of the calibration or not...

[RacerX11]

Or, if the PCM could be configured for the amount of pulses it sees per revolution. Not sure if it is in the binary part of the calibration or not...

Won't work....see Brad's post above.

[tejohnson]

Won't work....see Brad's post above.

I'm not referring to anything mechanical. I talking about making the PCM recognize the new signal from the new sensor. Not putting the old sensor in the block and expecting it to work... Unless it is class 2 data, then I completely understand why it wouldn't work.