Thread: car wont turn over after failed header install

I tried to get my headers installed but i ran out of time..so i turned back and put in the original manifolds and cross over, now she wont start and im still on a deadline i basicly need this done within the hour soo any and all help will be greatly appreciated

soo here is some of the things that i think could be the problem

1) when taking out the front o2 sensor the prongs in the harness popped out, i dont believe any wires broke but im not sure if theyre in the correct order

there is four prongs, if they are out of order would that prevent the car from starting up? and if you can help me figure out the correct order thatd be great too, if not i can toy around

2) i left the crossover open where it meets the rear mani, i figured itd be no big deal but i dont know if its skewing the o2 readings thus preventing the start up

i left it open becuase the two bolts snapped in the rear manis flange and i couldnt get them out


im cleaning my spark plugs now hoping that it is just some oil/ grease that is not allowing the spark to transfer from the wires

02 sensor would not prevent the car from starting. start simple is the battery connected? did you unplug the icm under the coil packs to move the wire?

Originally Posted by 01GTP

02 sensor would not prevent the car from starting. start simple is the battery connected? did you unplug the icm under the coil packs to move the wire?

battery is connected, didnt fondle with any ignition besides wires and there in the right order

all i need it for it to make the 1/2 hour trip up to my mechanics shop while i go away on business, but as of now its not leaving the driveway

Originally Posted by minichopper6hp

prongs got pulled after that, straight out of what plugs into that, the colors are different

this is gonna cost me a sh!t load of money that i dont have right now

would the crossover being unbolted from the rear mani effect it enough to shut it down?

do you have a test light or multimeter?

make sure you are getting power to the big and little wire on the starter.

Originally Posted by 01GTP

do you have a test light or multimeter?

no i dont

Originally Posted by 01GTP

make sure you are getting power to the big and little wire on the starter.

i didnt play around with the starter, so im assuming its alright, but i wouldnt know how to check otherwise


it turns over and i can keep it going if i gas it but other wise it cuts out

cutting out unless staying on the gas sounds like you have a big vac leak check the hose going to the break booster.

Originally Posted by 01GTP

cutting out unless staying on the gas sounds like you have a big vac leak check the hose going to the break booster.

i will now thx

thanks for helping mini but if thats not preventing it from running then honestly its not a high priority

[QUOTE=01GTP;359008]cutting out unless staying on the gas sounds like you have a big vac leak check the hose going to the break booster.[/QUOTE

im an idiot can you elabore more on where to look, honestly dont know where brake booster is and i dont see any vac lines where i thought it was, which was by the fluid resevoir

[QUOTE=SilvaMan61;359019]

Originally Posted by 01GTP

cutting out unless staying on the gas sounds like you have a big vac leak check the hose going to the break booster.[/QUOTE

im an idiot can you elabore more on where to look, honestly dont know where brake booster is and i dont see any vac lines where i thought it was, which was by the fluid resevoir

It is the big line that goes on the top of your blower to the big black thing behind your master cylinder.

i am hearing a hissing when it fires up soo it probably is the vac leak.......

the rpms will jump up to 1.5k and drop straight back down

i dont see a problem with that, no visable cracks or tears, and it is snuggly plugged in on both sides..just to confirm...its a rubber hose goes from the black "thing" in the back of engine compartment to a black circular thing in between the throttle body and vblower correct?

i know its probably frustrating trying to work with a moron but hang in there lol