ecm question

Printable Version

Corvette Forum >> Corvette Models >> Corvette C4 Forum >> ecm question

Page: [1] 2   next >   >>

Login Message << Older Topic   Newer Topic >>

ecm question - 5/8/2006 6:04:58 PM    mercedes84black   Posts: 33 Joined: 4/19/2006 Status: offline since i'm getting no reading from my new scanner and believe my ecm is bad i'd like to know if any other ecm (camaro etc.) would work on my 1985 or does it have to be '85 vette ecm as my friend has a junk yard and told me to let him know before buying a new ecm. also if that's the case would it need to be reprogrammed.........rsvp Post #: 1

RE: ecm question - 5/8/2006 11:00:13 PM    mech259 Posts: 1760 Joined: 1/22/2006 From: Lumberton, Texas Status: offline Match the GM production number off the ECM. You can get good quality rebuilds just about as cheap as used. No reprograming done on that ECM, all done witha prom chip, also would need to match GM production number. I would get the prom from GM, because you can get the latest updates already burned into it. _____________________________ L.B. ASE Master Certified L1 Emissions Certified 1986 C4 1969 RS Z28 Camaro 1970 Chevelle SS 396 (under construction) (in reply to mercedes84black) Post #: 2

RE: ecm question - 5/10/2006 9:21:45 AM    mercedes84black   Posts: 33 Joined: 4/19/2006 Status: offline i tried my local chevy dealers and no luck on the eprom or rebuilt ecm. any suggestions on who to contact, also as i stated before i'm getting no codes or flashes with my new code scanner just the service light stays on, so again would these items need replacement or should i try an actual shop computor scan before buying them as i'm new to corvettes and making every effort to learn them, i just bought this 1985 from an auction for $3500.00. starts great, sounds strong but dumping that fuel on 8 cylinders and can't scan for the codes to find out why.........HELP PLEASE (in reply to mercedes84black) Post #: 3

RE: ecm question - 5/10/2006 2:48:42 PM    mech259 Posts: 1760 Joined: 1/22/2006 From: Lumberton, Texas Status: offline Try your local Carquest store. Have you got the number off the PROM? GM should have it or can get it. Get me the number and I'll check. It might have been updated several times. _____________________________ L.B. ASE Master Certified L1 Emissions Certified 1986 C4 1969 RS Z28 Camaro 1970 Chevelle SS 396 (under construction) (in reply to mercedes84black) Post #: 4

RE: ecm question - 5/16/2006 3:46:39 PM    mercedes84black   Posts: 33 Joined: 4/19/2006 Status: offline i just pulled the ecm, the # is 1226870 for the ecm, is the prom the chip that snaps in and out of place where the little cover comes off of the ecm (in reply to mech259) Post #: 5

RE: ecm question - 5/17/2006 7:30:44 AM    mech259 Posts: 1760 Joined: 1/22/2006 From: Lumberton, Texas Status: offline Yes, it is. Be careful pulling it out and putting it in. It is easy to bend the pins if you don't have it in properly. I need the GM production number off the PROM. _____________________________ L.B. ASE Master Certified L1 Emissions Certified 1986 C4 1969 RS Z28 Camaro 1970 Chevelle SS 396 (under construction) (in reply to mercedes84black) Post #: 6

RE: ecm question - 5/17/2006 8:55:57 AM    mercedes84black   Posts: 33 Joined: 4/19/2006 Status: offline these are all the #'s, first under neath when i pulled the chip JT8(G)/J6/P LFIVZ893 AH01 second, on top of the chip is, delco HLP is all that i can see, although there are some more #s on top but can't see them due to the surrounding black chip cover (in reply to mech259) Post #: 7

RE: ecm question - 5/18/2006 12:21:16 AM    mech259 Posts: 1760 Joined: 1/22/2006 From: Lumberton, Texas Status: offline There usually is a sticker on the PROM with the 4 digit number I need, but I guess over the years, it has disappeared. I will try tomorrow to get you some answers. _____________________________ L.B. ASE Master Certified L1 Emissions Certified 1986 C4 1969 RS Z28 Camaro 1970 Chevelle SS 396 (under construction) (in reply to mercedes84black) Post #: 8

RE: ecm question - 5/18/2006 2:36:33 PM    mech259 Posts: 1760 Joined: 1/22/2006 From: Lumberton, Texas Status: offline Attached a prom ID picture. Attachment (1) _____________________________ L.B. ASE Master Certified L1 Emissions Certified 1986 C4 1969 RS Z28 Camaro 1970 Chevelle SS 396 (under construction) (in reply to mercedes84black) Post #: 9

RE: ecm question - 5/18/2006 2:44:09 PM    mech259 Posts: 1760 Joined: 1/22/2006 From: Lumberton, Texas Status: offline Is your Corvette standard or automatic? _____________________________ L.B. ASE Master Certified L1 Emissions Certified 1986 C4 1969 RS Z28 Camaro 1970 Chevelle SS 396 (under construction) (in reply to mercedes84black) Post #: 10

Today's Posts
Most Active Topics
Make A Donation
Forum Rules & FAQ
RSS Feeds

Corvette Prices

Corvette
Corvette Z06
Corvette History

Top 10 Posters
c3 starship 4814 blueshark 2180 topspeed 2092 lee willis 1991 mech259 1760 pay2play 1533 cwb 1508 corvette kin 1162 73shark 1130 pg 1066

New Vendors
AMSOIL - Performance Oil Technology