Balto82

I installed a new engine harness on my 2.2 today. hooked it all up. now my car wont crank or start. I seem to have power inside the car. headlights were working but they stoped working to. everything was working before I installed the harness. everything is pretty basic as far as hooking everything up. its not like you could hook something up wrong. all connectors and grounds triple checked. now im not hearing the noise that the fuel pump makes when you turn the key. seems like everything died exept radio and taillight. battery was unhooked before I installed the harness. do you think it could be the relays??

BLKLS

Sure why not

Balto82

New fuse box and relays from gm. Still no start. All fuses checked with a fuse checker

x8xViperx6x

iTrader: (1)

check voltage on battery make sure it didnt die in the process would be a good start.

Balto82

11.83 is what the meter says. Everything works in the car. I cant here the fuel pump run anymore and headlight dont work. Have a code po0230

x8xViperx6x

iTrader: (1)

check this site has a few possible solutions, says you have a circuit malfunction with your fuel pump.
P0230 Fuel Pump Primary (Control) Circuit Malfunction

Swap two relays, use a relay thats the same as the fuel pump, use a relay that you know that works. For example if you see your headlight works, you can assume your headlight relay works, etc. If your headlights still dont come on then dont use that relay, find one that works, and swap two.

If your not sure if any of them work, id recommend testing them with a DMM. Just google how to test a relay.

Balto82

all relays were tested to be good in the first place. for 250 I got a new fuse box with all new fuses and relays and new fuse box assembled by gm. so nothing is wrong with the relays. the reason I got a new fuse box is because I could wiggle the box and different things started working and other would stop. im thinking it could be the ecm. 1 possibility of this code said bad pcm

x8xViperx6x

iTrader: (1)

Id check the fuel pump circuit before you replaced the ecm.

Balto82

Swapped relays and nothing. corner lights and taillights turning signals work, just not headlights and high beams

x8xViperx6x

iTrader: (1)

okay well that cancels out the relay.

So everything works in the car except the fuel pump?
Id double check the fuse too, thats an easy check. You can also check for voltage were the relay plugs into, should have voltage only when key is on, also check the grounds.

Balto82

before the fuse box I lost power to most everything I couldn't even read my obd2. gonna check some stuff

x8xViperx6x

iTrader: (1)

So as of now, what are all your primary symptoms?

This is what is supposed to happen:
*Key off, open door, do you see mileage on dash, dome light come on(switch needs to be in center for this to happen)?

*Key on, lights come on, fuel pump primes. (I know that part doesnt happen for you)

What happens when you try to crank it? do you hear the starter?

Go to the fuel rail, check for fuel pressure, maybe the fuel pump isnt priming because its pressurized already? Im not sure if itll stop pumping when the rail is pressurized or not.

Balto82

yes everything in the car work when you open and close the door and sounds it makes. cluster, hvac, ac controls, don't like everthing works. I can see the milage. windshield wipers work. everything but headlights and I don't hear the fuel pump. the fuel pump did work sometimes when I took the fuse box out and reseated it. and I did get fuel pressure. didn't hear the started once. grounds checked. let me check fuel pressure again. I thought originally it was the fuse box.

Balto82

no fuel pressure. Gm just did lock cyclinder/key and power steering under the recall.

x8xViperx6x

iTrader: (1)

It sounds like there is a bad connection at the fuse box to me, but ive never removed the fuse box.

The headlights, have you tried to turn them on manually? They should come on as you turn the key to the on position, but the "auto-on" function maybe disabled, to turn back on, on the blinker switch, if you rotate the end clockwise, its a momentary switch to turn on auto lights. Or you can rotate it the opposite way to turn them on manually. Id try that.

And you said you havent heard the starter either?

Balto82

yes tried that headlight still don't working. whats weird is on the old fuse box I was wiggling the fuel pump relay and the headlights would go on and off. I knew the fuel pump relay had nothing to do with headlights? so I figured in fact that I was just wiggling the box by wiggling that relay and it was doing weird thing. so I replaced it. new engine harness. the long cord in the car that goes back to the taillights that's a new cord to. I wondering if one of the blocks on those harness are bad. Maybe dash harness, everything on dash gets power. no crank/start.

Balto82

hard to say but I guess its going to be on a tow truck for the first time in 4 years, sux.

x8xViperx6x

iTrader: (1)

You replaced the whole wiring harness? Did you make sure the harness was for your model/trim? Kinda hard to plug things in the wrong spot nowadays. Still sounds like something wrong with the fuse box location, because of so many things not working.

Balto82

the main body harness I put in the like 7 months ago it has been fine. and yes ordered directly from gm with my vin number. every connector is a different style goes in one spot so a baby can do it lol. I don't think things are seated right in fuse box. but there all clicked into place. the bolts in the fuse box are hand tight. power at fuse box post. I need to learn how to test for power at relay

x8xViperx6x

iTrader: (1)

That is weird, so everything was working until you replaced the fuse box? Id work from the last time it all worked, and go from there. If the only thing you have replaced was the fuse box due to the headlights acting up. Then it should be something with the headlight circuit itself, which could have been the original issue and not the fuse box. But by installing the fuse box, you could have mistakenly caused more problem with lose or no connections to other components. Thats what it sounds like to me.

What was your original issue before you started replacing parts?

Balto82

this all happened after a new engine harness not the fuse box. I can fact after new fuse block I got power back. nothing inside the car was working at all, not even obd2. there was multiple air bag wires cut so I decided to do that cord

x8xViperx6x

iTrader: (1)

okay, could be something with the engine harness to fuse box. Did you have to wire the harness to the fuse box? Is it possible its not done correctly there? Again, ive never rewired the engine harness nor the fuse box.. yet. Not sure how electrical savvy you are, but check for power on some components that do not work. Check both headlight plugs for voltage.

Balto82

on the harness there just little slide in boxes. they snap into the box holder then the box slides over. there is no wiring involved, like plug and play. I couldn't even put them in the wrong spot

Balto82

I forgot to say after I put the new harness on and the car didn't work/run. I put the good old harness on and it still didn't work with original harness. I took the harness off a year ago to re wrap it with black tape and zip ties and it work when I put it on then. so now both harness don't work?

x8xViperx6x

iTrader: (1)

Check for voltage at headlight plug

By any chance do your HI beams work?