Recent content by Mathies

  1. Mathies

    tbi no injector pulse 1989 k1500

    Really appreciate all the help But when the truck is running faster then 400rpms the ecm should take the injector spray over right? Bcs when i let it for like 20 sec on start pilot the injectors still wouldnt spray. And ill take it to a mechanic so he can use a scope and see if there is rpm...
  2. Mathies

    tbi no injector pulse 1989 k1500

    Okay ill test with a led light if i cant get my hands on a noid light. And could it be the prom mem call then bcs i bought a new ecm.
  3. Mathies

    tbi no injector pulse 1989 k1500

    Is there any other way to test it bcs the noid light is out of stock and they prolly wont have in a shop nearby
  4. Mathies

    tbi no injector pulse 1989 k1500

    Bcs of the lpg that was in my truck i needed to reconnect the injectors wires. I did it this way is has zero resistance but coud it be the ecm cant ground it fast enough bcs of this? And okay ill buy that noid light. Hopefully it wil come quick bcs i moved and my truck has to be out of here by...
  5. Mathies

    tbi no injector pulse 1989 k1500

    I also tested the injectors with a litlle 9V batt when i connected the batt to injectors for a very short time i could here the injectors work but no spray does this rule out the injectors are faulty?
  6. Mathies

    tbi no injector pulse 1989 k1500

    I meant both injectors dont pulse and it was with a normal test light. Should i buy a noid light and test everything again? Okay ill try hitting it gently when cranking but wont think it wil solve bcs the ecm doesnt ground the ecm.
  7. Mathies

    tbi no injector pulse 1989 k1500

    hey guys after buying a new ecm a lot of the problems where solved but one the injectors doesnt spray fuel. i already diagnosed a little. - i have spark in al 8 cill - the ecm recieves 12V to D14 and D16 - the injectors have 1.5ohm wich is above 1.2 - when connecting test light to injector...
  8. Mathies

    Prom + ecm?

    It just layed on the backseat of my car for 2-3 days an before that i left it uncovered in my garage for 2-3 weeks. And yes i heard of that ill try it out on e new ecm and see if my truck wil run.
  9. Mathies

    Prom + ecm?

    Its indeed a 89 with the 1227747 ecm number. And thats what happend i let the ecm with the cover off. The sticker with the 4 numbers is stil readable its 1389. Thx for replying i wil check out gearhead efi. And no i didnt verify yet bcs the delco 60904 is broken on my ecm wich actuates the...
  10. Mathies

    Prom + ecm?

    Hello Does anyone sell a ecm + prom For a gmc sierra k1500 5.0 with th700r4 trans. I let my ecm out in the open air with direct sunlight and i heard thats no good and will cause them to dont work anymore. So i think im pretty ******. I didnt know that and hate myself for it Thanks in advance
  11. Mathies

    89 electrical

    thx i found a replacement part i think the 4 numiric number doednt matter if the other ones are the same? And ill have a trady do that for me.
  12. Mathies

    89 electrical

    On my truck its protected by a fusible link 0.5 mm 20 awg. And thats the problem where i live it IS hard to obtain bcs i live in belgium and im like one of a very few that has one of these or a gmc from of these years in general i could swap ecm with. Thats my biggest problem if i want one i...
  13. Mathies

    89 electrical

    I hope you can see it on the picture
  14. Mathies

    89 electrical

    Hello i think i found the issue tot the problem although i hope so. After further inspection of the ecm i saw what you guys can see in the picture what looks a slightly burnt solder on the pins on the delco 60904. I found a video of a guy repalcing it and he states the ecm was unable to fire up...
  15. Mathies

    89 electrical

    thx for the answer and method to de-pin m connector. i tried connecting only A and B and unhooking C D and the other way around the fuse still pops. i also measured ohm between all the pins on the connector and ground only B8 has continuety to ground and ofcourse D1 and A11. B8 goes to the AC...
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