whats the difference between a pm7 and a pg7 ecu?

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Dec 15, 2003 | 10:41 PM

JLockheed

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whats the difference between a pm7 and a pg7 ecu?

Im looking for a 88-89 teg ecu and am having a bit of a prob. Im first having a hell of a time finding one, and second ive come across both a pm7 and a pg7 ecu and both claim to be from an integra? Can anyone help me out here?
Thanks,

Dec 15, 2003 | 11:38 PM

EG8R

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Re: whats the difference between a pm7 and a pg7 ecu? (JLockheed)

PM7 would be from a ZC....

Dec 15, 2003 | 11:41 PM

t0eKnEe

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From: South Florida, USA

Re: whats the difference between a pm7 and a pg7 ecu? (JLockheed)

PG7 is from 88-89 USDM integra.
PM7 is from an 88-91 JDM CRX Si DOHC ZC

I have a Pg7 for sale if you still need one

Dec 16, 2003 | 12:16 AM

91civicDXdude

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From: Saint Joseph, MO, USA

the PG7 is pre 90 style electronics (makes sense, sense it is from 86-89), which means you cannot chip it without replacing the entire microprocessor.
BTW, there are two types of PG7...
86-87 - vacuum advance, use in 1g crx/3g civic for D16A1 swap.
88-89 - electronic advance, use in 2g crx/4g civic for budget ZC swap.

the PM7 is 90/91 style PM6 which has an external 28 pin EPROM and can be chipped with ease

Dec 16, 2003 | 02:50 AM

payneth

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prolly a stupid *** Question, but i have a sohc zc and my bro has a pm7 in his 89 teg. i know his ecu will work in my car but what if i take mine out and plug it in his? lol without him knowing. anyone think this would work or should i say "fuc it and not do it"