|
|
Register To Post |
| hdfire | Code 51 | ||
|
Guru Newb
 
|
Hello guys,
Well after Matak (Matthew) busted his butt helping me Wednesday night (which I'm in debt to him!), we got the new FIC injectors installed. I finished everything up today just to find injectors 1 & 3 leaking. Just got off the phone with Bill at FIC and after some good conversation and advice I'm "reseating" the drivers side bank. I did get it started earlier and fired right up and ran pretty well.....for the usuall 4-5 minutes, then slowly idled down and stalled. The same problem I've been having all spring. I pulled the codes and it's giving me a code 51. MEM-CAL according to the FSM. Which it says is a problem with the PROM or ECM. I'm trying to plan ahead, are there any vendors of new or rebuilt ECM's? and or PROM's? My car is an 89 w/ AT. Thanks much guys! -Mike |
||
Posted on: 2011/6/17 22:09
|
|||
 Transfer
|
 
|
||
| Matatk | Re: Code 51 | ||
|
Webmaster
 
|
I have a spare ECM to try, but my memcal was transferred to my zif adapter chip. We can also pull it and see if it's seated right.
Reseat the injectors farther down in the manifold and see if they still leak. Otherwise we'll have to grind the fuel rail bosses down on the intake manifold so it sits lower. Matthew |
||
Posted on: 2011/6/17 23:34
|
|||
|
_________________
2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
|||
|
Transfer
|
|
||
| hdfire | Re: Code 51 | ||
|
Guru Newb
|
Thanks Matt, giving it one more try tonight.......
|
||
Posted on: 2011/6/17 23:40
|
|||
|
Transfer
|
|
||
| hdfire | Re: Code 51 | ||
|
Guru Newb
|
UPDATE:
I followed Bill from FIC's direction and used Vaseline on the o-rings (don't laugh, it worked!). Both of the leakers sealed this time. So that leaves me with the ECM problem which now seems worse. Idle was all over the place, from 700-1200, keeps wandering then slows and stalls. I did find a few places on line that rebuild them, also found a few on ebay. Any advice either way? We're getting closer! Thanks again! |
||
Posted on: 2011/6/18 1:56
|
|||
|
Transfer
|
|
||
| Matatk | Re: Code 51 | ||
|
Webmaster
|
The ecms are readily available for under $50 as they were used in tons of gm models in the late 80s early 90s. If it's the prom you might have a harder time finding that. We'll have to check it out. As I mentioned in my pm, it's easy to get to.
Matthew |
||
Posted on: 2011/6/18 2:50
|
|||
|
_________________
2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
|||
|
Transfer
|
|
||
| hdfire | Re: Code 51 | ||
|
Guru Newb
|
Thanks Matt!
|
||
Posted on: 2011/6/18 3:39
|
|||
|
Transfer
|
|
||
| bogus | Re: Code 51 | ||
|
Grand Imperial Pooh-Bah
 
|
Please note that our newest Gold Vendor, K&B Corvette Products specializes in repair and replacement of GM Engine Controllers.
Check out their forum section! |
||
Posted on: 2011/6/18 4:07
|
|||
|
_________________
The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
|||
|
Transfer
|
|
||
| X-FIRE | Re: Code 51 | ||
|
Senior Guru
 
|
I had the same code on my 84. I pulled the computer and reseated the chip about 3 times and each time unhooking the battery to clear the code, but the code kept coming back. I replaced the chip about two years ago and haven't had the code return. Had the same symptoms that you did.
|
||
Posted on: 2011/6/18 17:42
|
|||
|
Transfer
|
|
||
| hdfire | Re: Code 51 | ||
|
Guru Newb
|
Quote:
Thanks for the info... I have the ECM out, PROM looked to be installed O.K. and the original one. I've located a replacement ECM, we'll give it a try. Hopefully this will solve it. I'm really hoping to make it to Bloomington Gold next weekend at Pheasant Run! |
||
Posted on: 2011/6/18 18:56
|
|||
|
Transfer
|
|
||
| X-FIRE | Re: Code 51 | ||
|
Senior Guru
|
Quote:
If the ecm doesn't fix it, then it probably is the chip. You taking the car to Bloomington Gold or just going to spectate? |
||
Posted on: 2011/6/18 19:56
|
|||
|
Transfer
|
|
||
| hdfire | Re: Code 51 | ||
|
Guru Newb
|
I was planing on driving! LOL....we'll see!
|
||
Posted on: 2011/6/18 20:28
|
|||
|
Transfer
|
|
||
| hdfire | Re: Code 51 | ||
|
Guru Newb
|
UPDATE:
Well I purchased a used ECM from a member on CF, installed it this evening and the car runs smooth. No stalling, no codes. So hopefully that was the problem. I'll take it out tomorrow for a drive and see how it performs. BIG sigh of relief!.... |
||
Posted on: 2011/6/24 0:31
|
|||
|
Transfer
|
|
||
| Matatk | Re: Code 51 | ||
|
Webmaster
|
Looking forward to the long term results, Mike. I hope this solves the problem.
Matthew |
||
Posted on: 2011/6/24 1:18
|
|||
|
_________________
2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
|||
|
Transfer
|
|
||
| hdfire | Re: Code 51 | ||
|
Guru Newb
|
Well I made it to B/G today, car ran fine and I had great time. What a show!
|
||
Posted on: 2011/6/25 21:05
|
|||
|
Transfer
|
|
||
| RickAnthony | Re: Code 51 | ||
|
ASE Master Certified
 
|
Quote:
Yep I've used a little bit of motor oil on the seals, def. helps them slip into place and helps keep them from tearing as well.. Glad you got it fixed! Matt's an awesome guy and a really good friend! Hopefully we'll get to meet you this summer as well! -=Rick |
||
Posted on: 2011/6/27 4:37
|
|||
|
_________________
My Automotive Blog autoserviceupdated.blogspot.com CORVETTE SERVICE & REPAIR RickAnthonyMotorsports.NET |
|||
|
Transfer
|
|
||
| hdfire | Re: Code 51 | ||
|
Guru Newb
|
Looking forward to it Rick!
|
||
Posted on: 2011/6/28 4:13
|
|||
|
Transfer
|
|
||
You can view topic.
You cannot start a new topic.
You cannot reply to posts.
You cannot edit your posts.
You cannot delete your posts.
You cannot add new polls.
You cannot vote in polls.
You cannot attach files to posts.
You cannot post without approval.
|
|