Will a 1990 PM5 ECU run a DOHC-ZC??????
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Joined: Aug 2005
Posts: 1,690
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From: NE Ohio, USA
Re: Will a 1990 PM5 ECU run a DOHC-ZC??????
No it will not run it. pm5 is a DPFI (2 injectors) ECU, plus it does not a runa Cylinder Position sensor like MPFI models.
If you can't get a pm7 grab a pr4 (90-91 Integra ECU) may run rich or a pg7 (88-89 integra) which is the best alternative.
This is from http://dohc_zc.tripod.com/main.html:
You can use the SI ecu, but plan on upgrading to a 88-89 Integra ecu. The Integra ecu features more aggressive fuel and ignition maps and also allows a higher rev-limit (7500 rpm). The Integra ecu will hook up directly to the SI wiring harness and takes about five minutes to do. WARNING! only the 5-speed ecu will work, when you go to get the ecu ask the place that you are getting it at if you can test it first. Install it in the parking lot, let the car idle for five minutes then drive around and make sure it drives right. Test before you buy.
If you can't get a pm7 grab a pr4 (90-91 Integra ECU) may run rich or a pg7 (88-89 integra) which is the best alternative.
This is from http://dohc_zc.tripod.com/main.html:
You can use the SI ecu, but plan on upgrading to a 88-89 Integra ecu. The Integra ecu features more aggressive fuel and ignition maps and also allows a higher rev-limit (7500 rpm). The Integra ecu will hook up directly to the SI wiring harness and takes about five minutes to do. WARNING! only the 5-speed ecu will work, when you go to get the ecu ask the place that you are getting it at if you can test it first. Install it in the parking lot, let the car idle for five minutes then drive around and make sure it drives right. Test before you buy.
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