About to throw a match to it.

jivepepper · Oct 11, 2008

My car keeps dying while under heavy acceleration. Plus missing and holding back occasionally under light load.

I had the codes pulled today and this what I got
PO352 Coil B ignition coil B primary/secondary malfunction
PO353 Coil C ignition coil c primary/secondary malfunction
PO354 Coil D ignition coil d primary/secondary malfunction
PO358 Coil H ignition coil h primary/secondary malfunction

I know it's related to the coil packs, but I doubt 4 are going bad all at once. Also what's meant by secondary malfunction?

My car has been such a PIA this year I have almost given up on it please help me.

Ryan441 · Oct 11, 2008

try new coil packs you can always return them if it doesnt help. and i know how your feeling ive considered driving it into a tree of setting it on fire haha mine has a clunk noise under lite throttle and holds back and stutters under hard throttle maybe i have the same prob as you?

jivepepper · Oct 11, 2008

Mine just dies and I have to restart it.

Roblu98 · Oct 11, 2008

Maybe one of the coils went bad and is shorting out, that could mess with the rest of them. Use a mutimeter and check the resistance of all your coils to see if there is a bad one. Good luck!

jivepepper · Oct 11, 2008

Roblu98 said:
Maybe one of the coils went bad and is shorting out, that could mess with the rest of them. Use a mutimeter and check the resistance of all your coils to see if there is a bad one. Good luck!

Could one mess with the others? I have checked recenty like 3 weeks ago and they all seemed the same.

04YELLOWGT · Oct 11, 2008

That sucks dude. That is one of the problems you get when you mod a car to this point like you and I have. There are always little bugs with the car, I know I was having a tunning issues that almost ruined the car for me. You'll get it figured out just lik I did.

Good Luck!

jivepepper · Oct 11, 2008

^ Yeah it's been aggravating. I haven't had a decent run at the track since I did the heads and upped the boost.

Well I had one cop off a different motor on coil #8/H. I replaced it and so far it seems fine. I think it might have missed a little once on the way back home but no dying during acceleration. Could a coil pac shorting out cause the others to throw a code?

I also put in 2 Aviator fuel pumps in my cobra set up today and I'm throwing a P0190 which is a fuel rail pressure sensor malfunction. When I first start.

COramprat · Oct 11, 2008

Not that I'm an expert but sounds plausible that once one of the coils misfires it could cause a hiccup down the line. One other thing you could look at is cylinder wash out. When you get a consistant misfire, the raw fuel will wash out the the rings and get blow by and misfire. Try changing the oil and checking the plugs also.

http://forums.stangnet.com/5997010-post6.html

birdman941 · Oct 11, 2008

.......................

jivepepper · Oct 11, 2008

COramprat said:
Not that I'm an expert but sounds plausible that once one of the coils misfires it could cause a hiccup down the line. One other thing you could look at is cylinder wash out. When you get a consistant misfire, the raw fuel will wash out the the rings and get blow by and misfire. Try changing the oil and checking the plugs also.

http://forums.stangnet.com/5997010-post6.html

I just changed the oil last week. But I will check it see if looks or smells funny.

I'm getting the po190 code but only at start up. I think my fuel mpressure spikes for a minute and throughs the code because I have the big Aviator pumps and a 40amp BAP. I have no check valves. and the pulse dampner has been removed.

jivepepper · Oct 11, 2008

birdman941 said:
The RF resistors on the harness could cause the same thing.

Aren't those the little black things at each end of harness near the front of the motor. I hear they're only there to suppress noise on the radio etc? I wonder If I could just remove those?

birdman941 · Oct 11, 2008

..............................

jivepepper · Oct 11, 2008

birdman941 said:
Removing the pulse damper was not a good idea.

Lots of people do when the upgrade the lines. Leaving it in would be a bottle neck for them. I think I will try unplugging them I don't have a working radio right now anyway.

evil281 · Oct 11, 2008

instead of throwing a match to it just give it to me

COramprat · Oct 11, 2008

evil281 said:
instead of throwing a match to it just give it to me

X2

jivepepper · Oct 12, 2008

evil281 said:
instead of throwing a match to it just give it to me

Sure right after I throw the match at it.

streeter69 · Oct 12, 2008

jivepepper said:
My car keeps dying while under heavy acceleration. Plus missing and holding back occasionally under light load.

I had the codes pulled today and this what I got
PO352 Coil B ignition coil B primary/secondary malfunction
PO353 Coil C ignition coil c primary/secondary malfunction
PO354 Coil D ignition coil d primary/secondary malfunction
PO358 Coil H ignition coil h primary/secondary malfunction

I know it's related to the coil packs, but I doubt 4 are going bad all at once. Also what's meant by secondary malfunction?

My car has been such a PIA this year I have almost given up on it please help me.

Start looking at the wiring system I have yet to have a coil problem with that "primary/secondary malfunction". Get a wiring diagram from computer out to coil and have fun. Start looking for burned wires, connectors and those stupid rf resistors. I hate wiring, I pawn it off on another mechanic as I do not havethe patients for it.

About to throw a match to it.

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