Truck seems like a dog

[User_name]

System is charging 13.6 volts. Exactly what the scan tool is saying.


And here's where I got mine from. There's both definitions for code 52 in the manual. That same page that was posted above is also in the 1995 manual. This is also in there as well.

 

[1997]

crazy, you would think GM would have made notes about that in the shop manual.

 

[Schurkey]

I don't know what to say. If it's not high voltage--EVER, at idle, at WFO, when turning left, when coasting on the highway from 70 to 50...


...I guess you need a new MEM-CAL and/or computer.

 

[User_name]

@Komet Heres some pics of the ecm and prom. Finally got a chance gto get it.
Any suggestions as to where to get a prom? None of my local treasure yards have the correct prom number. No stores obviously has that stuff. I'm getting to the point of putting a carb and big cap hei distributor in it and calling it good. I hate to get rid of my fuel injection like that but I'm tired of fighting it. Maybe even consider fitech ot jegs bandit. Idk

 

[DeCaff2007]

@Komet Heres some pics of the ecm and prom. Finally got a chance gto get it.
Any suggestions as to where to get a prom? None of my local treasure yards have the correct prom number. No stores obviously has that stuff. I'm getting to the point of putting a carb and big cap hei distributor in it and calling it good. I hate to get rid of my fuel injection like that but I'm tired of fighting it. Maybe even consider fitech ot jegs bandit. Idk

You'll be fighting with that just as much. I'd fix the current problem before "downgrading" like that.

 

[PlayingWithTBI]

Any suggestions as to where to get a prom?

A quick search...
www.ebay.com/itm/225237187525?chn=ps&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&itemid=225237187525&targetid=4580359295528871&device=c&mktype=&googleloc=&poi=&campaignid=437225724&mkgroupid=1228154759183859&rlsatarget=pla-4580359295528871&abcId=9300907&merchantid=51291&msclkid=49bab7cd10331853ca57d4340ba06f75

90s GM Truck Module 16196396 BDTP MATCH YOUR NUMBER NOT VEHICLE !! OEM Part | eBay

Find many great new & used options and get the best deals for 90s GM Truck Module 16196396 BDTP MATCH YOUR NUMBER NOT VEHICLE !! OEM Part at the best online prices at eBay! Free shipping for many products!

www.ebay.com

 

[PlayingWithTBI]

here's the page from my search, I'm not saying it's your issue - YMMV

www.bing.com/search?form=MOZLBR&pc=MOZI&q=16196396

16196396 - Bing

Intelligent search from Bing makes it easier to quickly find what you’re looking for and rewards you.

www.bing.com

 

[Komet]

For $72 shipped I'd try swapping the ebay ecm in and see if you get different results. It's worth the money even if it doesn't solve the problem.