82 OEM Updated Eprom
Thread Starter
Instructor
Joined: Aug 2004
Posts: 106
Likes: 1
82 OEM Updated Eprom
I keep searching and can't find a previous post regarding a TSB on the 82 ECU eprom. I remember reading it...
I'd like to find the updated prom that GM released. The hypertech chip changes the conditions to use a 160 T-stat. I just want the updated chip.
The update was supposed to enhance idle leanness and assist with the torque converter lockup for driveability.
Anyone have the TSB or can point me in the right direction? The simplist thing (maybe not the easiest) would be if I could find the updated chip from the TSB....think GM would still have it? I would doubt it.
I'd like to find the updated prom that GM released. The hypertech chip changes the conditions to use a 160 T-stat. I just want the updated chip.
The update was supposed to enhance idle leanness and assist with the torque converter lockup for driveability.
Anyone have the TSB or can point me in the right direction? The simplist thing (maybe not the easiest) would be if I could find the updated chip from the TSB....think GM would still have it? I would doubt it.
Le Mans Master
Joined: Apr 2001
Posts: 5,000
Likes: 1
From: Minneapolis, Mn USA
I know about this as well. Finding that chip is tantamount to a pot of gold at the end of the rainbow as it is discontinued. Good luck!
1982: Service Bulletin: Spark Plug Fouling/Driveability Improvements
Subject: SPARK PLUG FOULING/DRIVEABILITY IMPROVEMENTS - 1982 CORVETTE WITH FEDERAL EMISSIONS
Model and Year: 1982 Corvette with Federal Emissions
Source: Chevrolet Dealer Service Technical Bulletin
Bulletin Number: 82-T-101
Number: VIt
Section: Aug., 1982
TO: ALL CHEVROLET DEALERS
A new PROM has been released for the 1982 Corvette to reduce the possibility of spark plug fouling and to enhance driveability. This new PROM leans the fuel calibration during cold engine operation and unlocks the torque converter at a lower throttle opening.
NEW
ECM 16029531
PROM Identification 391A36
Service Prom 1226096
Get ahold of your favorite Chevy dealer and see if they can search all of GM dealers for this part GM 1226096
1982: Service Bulletin: Spark Plug Fouling/Driveability Improvements
Subject: SPARK PLUG FOULING/DRIVEABILITY IMPROVEMENTS - 1982 CORVETTE WITH FEDERAL EMISSIONS
Model and Year: 1982 Corvette with Federal Emissions
Source: Chevrolet Dealer Service Technical Bulletin
Bulletin Number: 82-T-101
Number: VIt
Section: Aug., 1982
TO: ALL CHEVROLET DEALERS
A new PROM has been released for the 1982 Corvette to reduce the possibility of spark plug fouling and to enhance driveability. This new PROM leans the fuel calibration during cold engine operation and unlocks the torque converter at a lower throttle opening.
NEW
ECM 16029531
PROM Identification 391A36
Service Prom 1226096
Get ahold of your favorite Chevy dealer and see if they can search all of GM dealers for this part GM 1226096
Safety Car
Joined: Mar 2007
Posts: 3,652
Likes: 49
From: Bridgewater nj
If you have the 180 temp chip that is the higher performance chip. I have the Hyper tek 1. My 82 runs great with no mods and drivabilty is 100% better than stock with a kick in the pants for porformance.
Thread Starter
Instructor
Joined: Aug 2004
Posts: 106
Likes: 1
With the hypertech 1, do you have to switch out your stock t-stat? I'd have to look up what is the stock t-stat degree rating....is the stock t-stat 180? I'd want to make sure my chip's programming for the t-stat matches the actual t-stat I have.
Thread Starter
Instructor
Joined: Aug 2004
Posts: 106
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Here's one of the chips, but it lists it as the california-only model...L98...arghhh
What is the actual Hypertech part\model #? Do you know?
http://www.autopartswarehouse.com/de...H58152802.html
What is the actual Hypertech part\model #? Do you know?
http://www.autopartswarehouse.com/de...H58152802.html
Safety Car
Joined: Mar 2007
Posts: 3,652
Likes: 49
From: Bridgewater nj
I purchased mine from Corvette Central, page 77, Part#303016 and price is $139.95+shipping. No modification needed except you have to run 91 octane but I have mixed reg. and 91 with no problems. My stock thermo is 190*. I think Cal. is 200*
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Thread Starter
Instructor
Joined: Aug 2004
Posts: 106
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82 eprom street runner program
For the 82 ecu
I sent a copy of the bulletin to Hypertech and here is what they said about the street runner eprom chip vs. the GM updated chip.
We adjust the air/fuel mixture and timing curve which is designed around premium fuel to help increase power. We do delay the TC lockup from the updated GM chip 35 mph up to 42 mph. Our chip was made off the last updated chip that GM had for this vehicle. We just alter the air/fuel mixture and timing curve and TC lockup. Thanks
Summit has them for like $110...i just isntalled mine and so far its a lot better than what I had...
I sent a copy of the bulletin to Hypertech and here is what they said about the street runner eprom chip vs. the GM updated chip.
We adjust the air/fuel mixture and timing curve which is designed around premium fuel to help increase power. We do delay the TC lockup from the updated GM chip 35 mph up to 42 mph. Our chip was made off the last updated chip that GM had for this vehicle. We just alter the air/fuel mixture and timing curve and TC lockup. Thanks
Summit has them for like $110...i just isntalled mine and so far its a lot better than what I had...
