I don't know what vom is but, a NOID light is about $15 at advanced. I think I need to get one too.

 

you do not need to tear up your harness I never stated that. check for power on each bank on the pink/black stripe wire with the key on. If that is good you said there is no light or blinking with the noid installed and key on or cranking if thats the case the ecm is bad or the ecm ground is bad.

 

how much will what cost ?

 

??? Because i have never checked its grounds so it is the ecm or its ground most likely rite, and the icm isnt the problem rite since the noid light didnt flash or anything

 

You have not given much information to go on so its all guesses here.
In order for the ecm to pulse the injectors if vats equipt the ecm needs to have a hz signal from a modulator or passkey module. Once this has been done the engine needs to crank at 400 or more rpm and send a tach signal to the ecm the ecm will control the ground side of the injectors to fire them. There needs to be switched power on the pink/blk wire to power the injector coils. I can't say if your icm is bad , you could see cranking rpm on a scanner or tunerpro but you need to start with the basics.

 

Well what do you mean by much information? Like how I was driving it and it died all the sudden but was kinda running like crap before it died when id give it alot of gas, or how the fuel pressure is 45psi, it has spark, it starts with gas threw the throttle body, and the noid light did nothing when i tried starting it. Lol what else do i need to give you that might help fix this any quicker or cheaper lol?

 

Ok well im going to look for the ecm computer tommoro and its ground point aswell, as im guessing its somwhere under the dash hidden, and ir shouldnt be hard to find the big metal box lol so ill update tommoro, thanx for the help

 

Im getting tiered of posting the same stuff for you over and over, post #52

 

Helm service manual. Buy one and read it 75 times if you have to.

 

I need it put in easyier to understand sentences then because i understand what ur saying in a way but its always confusing as its not a in depth response so thats why i keep asking questions about what you say

 

check the damn power to your injectors the pink/black wires with your key turned on

 

I thought you said if the noid light didnt work that it could be the icm, ecm, or ecm ground

 

you never verified power to the injectors you had your meter set to ohms witch is a resistance not a power setting

 

Ok so im about to go test the injector harness plugs, on 12volts i think, well im going to use the setting i use to check my battery which is 9v i think anyways what should the setting be called incase this setting doesnt work as it doesnt say 12 volt or dc

 

Ok well i acomplished finding the ecm it was hidden up in the dash under the huge wiring harness conversin lol, and there is a bolt sticken out the back of the block like 2inches and it had three wires on it 2 blk/white white strip on them, and a tan ish wire.
Also the ecm server number says 1227165 then it says 868161 m520687778 and ABWN all on a faded sticker so does it have vats, and what d i order a memcal/prom, or the computer and use my prom? and what year one do i buy

 

 

Ok so i looked up some stuff about decoding the ecm, and i have no wire in wire plug b terminal 6, and im guessing the server number will be how i know which prom or computer to buy, so now i just need to know which to get off ebay lol is the prom the issue or the big metal box? And im not buying a manual untill i have the spare money to waist, as i will end up having spent $140 on this damn eletrical issue thats if this ecm is truely the issue, but thanx fr the many comments telling me to get one

 

Its not a waste. Everything your asking over and over is in that book.
You could look at the book over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over.
The book truly pays for itself after a few at home fixes. You'll be surprised you could live without it.
And we wouldn't have to decode everyone of your posts so we could read them.

 

Ok like i said though i dont have the money for it rite now, maybe in a week or two but anyways.
I just need to know do i buy the big metal box, or the prom chip that goes in the computer box?

 

The abwn is from a 87 camaro , and does not have vats.
GW6 AXLE, REAR, 3.27 RATIO With L98 5.7L GAS 8 CYL MFI With MD8 AUTO 4 SPD THM 700 R4 With NA5 FEDERAL REQUIREMENTS

 

well **** lol why didnt they ask me for the ecm codes when i was trying to find out some stuff about the motor lol, anyways thanx.

Also so I have came to the conclusion i need to buy the metal box/ecm, and not the prom chip to fix the issue rite?

 

Sooo do i need to buy a prom chip or the metal box the prom goes in? Also is that bolt with the three wires on it the ecm grounds wire?

 

?????? This is the last thing i need to know ^^^ and they are both about $100 so i dont feel like buying the wrong one

 

a service manual and volt ohm meter would be a wise investment

 

Oh my god, This is the last thing i need to know and a manual wont help, besides you know which one i need since you helped diagnose the issue so do i need the prom chip or the computer box that it plugs into?

 

I have never saw the answer to if the pink and black stripe wires on ech injector bank have power with the key to the accessory position.

 

Look on fleabay for the correct part and just get both... got to be less than $100, if not keep looking. Buy a "Computer" from a camaro or firebird matching your year, engine, and transmission. Make sure the one you buy accepts returns.

 

I dont have enough money to buy both, and i dont think some of you are understanding that im only 16 and I dont have **** spoon fed to me.
Also I dont knw what setting my multimeter is supposed to be set on to check the banks, but i tried the 9v setting and got nothing, but idk if you can check it like that, oh and the computer is like $120 and the prom is like $80 all on ebay.

 

Oh and I planned on buying whichever it is i needed the computer or prom, then if it wasnt the issue just re-selling it, and besides im lke 80% sure its the ecm, and I have thought this since the list of possible problems was given to me like 3 weeks ago, so please tell me which it is i need to get, thats really all I need to know and if it doesnt fix the issue then ill try more stuff.

 

You said ECM (aka "computer" and "silver box"), but I am NOT stating that is what is wrong with your car the other guys have done a much better job than I could ever do helping you.

The injectors are pulsed with 12volts so, set your voltmeter (vom) to 20 DCV. However, you are better off using a test light so you can see it pulse when the ECM sends the 12V DC signal.

If you can't afford the best manual the guys suggested at least get one from your local parts store as an introductory text.

 

It doesnt have 20dcv, and like I said i know its the ecm and if not all well i can just sell it and get my money back.
Tunedperformance can you please tell me which one it would be if the ecm was to be the issue so that i can get this fixed already?

 

Please use the search feature and or google, you may learn something.

 

Ok well after using the search feature, I learned that tunedperformance might have the part i need on his virtual junkyard site which i found on another thread similar to mine, so if you have what i need ill buy it from you if you want to sell it. just let me know how much please

 

Oh and do you think my ecm was on limp mode the day it stopped running, since it would act like it was running out of gas eery once in awhile even the day before it quit running it was doing tthis like just running low on gas symptoms is that limp mode?

 

You have not posted if you have power to the injectors yet, I do have a 1227165 ecm but I want to really try to narrow do the correct issue. If you have power to the pink.black wire of each injector bank and you have a good ecm ground You should see if you have communication with the ecm bye blinking codes it will not communicate and you have verified the ecm's power and switched power and ground at that point I would say the ecm is bad. You have not said you have power at the injectors so at this point your guess of throwing parts at it is just as good as mine.

 

I do have a 165 ecm out on loan right now with another member if it looks like this is the issue I can see if he will be willing to mail it along to you, if it work you can purchase it if not just mail it back to me

 

Ok ya I could do that just let me know how much and when but it will be about 4-5 days untill i have the money on my paypal account to give to you. Also is the computer box called the ecm or is it called something else because i would think the prom would go bad instead of the box rite? But if the ecm is the problem then that would be reffering to the metal box and not the prom chip rite? sorry if confusing just curious about that.

 

send me a pm with your full name and shipping address, I just pmd the guy who has a loaner ecm I have. If the ecm is the issue you can purchase it from me then if not just ship it back to me after you try it out. The memcals vary rarely fail and if they do you should still have limp home mode. you will need to remove your memcal and put in the ecm that I am having shipped to you.

 

pm sent

 

pm replied