jcori3

Ok did the header install and all is good. Now when i start it up the motor shakes and then jumps real bad every few seconds. I put a brand new set of nkg tr55's in and made sure all plug wires are tight, two clicks on coil and pushed on real good on spark plugs. Any suggestions?????? thanks

TAQuickness

iTrader: (28)

how did your O2's look?

Lithium

iTrader: (47)

Make 100% sure that you plugged all the sensors back in. Because I bet thats what it is.

jcori3

ummm ok i guess, they have around 45,000 miles on them. Had no problems before with stock manifolds, no codes or anything

jcori3

ok ill double check the sensors, now these are the race version pacesetters, so i left the egr out and the air, also i got the extensions and have them installed with the o2's in the headers. I dont have any o2 sims yet. Would this cause it to idle rough and jump real bad every few seconds and backfire?

jcori3

only thing i have not done is change plug wires, they are still factory ones, but they look great, came right off, real soft and pliable, no burns, i really dont think that is what it is, cause everything was just fine before the header install

Lithium

iTrader: (47)

Just go over everything first.

Sounds like there is nothing wrong with the plugs wires.

jcori3

i was just running headers and then i read where the sensors were to close to the opening of the header, so i hooked up mu y pipe temporarily but dont have it hooked up to the catback. Would that make a difference in it idleing rough and motor jumping every few seconds?

Lithium

iTrader: (47)

No it should not. People run open headers all the time without problems.

How long were they open for?

jcori3

i havnt even been able to drive it, cause it running so rough and backfiring so bad , i have just let it run for a few min when ever i do something different to see if i fixed it. Should i try replacing the o2's in the headers with the ones in the old y pipe? i went back out and looked at everything real good and the only sensor unplugged is the one in the right front that went to the egr valve. i am really at a loss as to what it is.

Lithium

iTrader: (47)

Did that work? any codes being thrown?

jcori3

have not changed the o2 sensors yet, i can go do it real fast, brb

Lithium

iTrader: (47)

Yeah that may work.

Are you throwing any codes?

jcori3

changed out both o2 sensors w/the one in the factory y pipe, started up, doing same thing. i dont have anyway to check the codes, but the ses light is on. but i dont have o2 sims and the egr is staying out of the car. that is the only plug not plugged in, the egr plug that is.

Lithium

iTrader: (47)

****... you have to get those codes read. If you have another car run down to autozone and rent a reader from them. Thats really the only way to pin point whats going on.

jcori3

ok ill call and see if they rent one here where i live, brb

gwj

I ran mine up to about 130 w/open headers and #8 plug
wire off,unknowingly. No problem except flashing SES.
I drove to work for 2 days (about 270 miles) with the Y
pipe on/no catback.No problem.
If you don't have a sensor or such unplugged,
Is it possible you banged/cracked a plug?
It would show up as misfires, most likely.

TAQuickness

iTrader: (28)

when you take the reader back to autozone, pick up 2 bosche 13111's.

jcori3

plugs are brand new, i put those in because of the problem, didnt help any, i dont know what the problem is, im ready to throw in the towel though, this is rediculous. all the plugs to the coil packs are on good, i have double checked all the sensor plugs and all are in place, still running rough and jerking every once in a while

Lithium

iTrader: (47)

I am almost positive once you get those codes read that will solve your problem. Still sounds like there is something loose or unplugged to me.

Did you find anyone to rent you a scanner?