Fonzi1289

Ok guys i really need ur help on this.

For some reason my car wont stop misfiring. I bought new plugs. Tried gaps from .32 to .40, patched up a major ass rub mark on the intake with quick steel, pulled the intake mani off and checked the gaskets bolted the mani back on tight and made sure there was no leaks. ANd when i am cruising and coming to a stop and start down shifiting my rpms fluctuate from like 800-1100. R they suppose to do this?

What else could it be.?

Oh also i told Vince and he checked my VE tables and he said they r fine.

Help me please. i am about ready to throw my stock stuff back on but i really dont wanna.

ryansalazan

iTrader: (6)

damn dude i would have no idea! you didnt drop any of the injectors by chance when you were installing did you? my friend put new injectors in her car and she dropped one hard and its been misfiring ever since.

Fonzi1289

Nah.. i been reading and it could be many things like fuel filter clogged, map sensoe, MAF sensor, tb, Ignition control module, timing chain, compression... man there r so many things.
Dude and this all happened after the blower went on. Good luck to u!! Hope u dont run into any of my problems.

ryansalazan

iTrader: (6)

canyou even drive it hard? im sorry thats lame bro, check the map sensor im guessing where does that even plug in? the one thats supposed to be on the blower?

06_ion2

Are your injectors seated in correctly in the injector spacers? are the spacers cracked? sounds like a vacuum leak if the rpms are fluctuating.

Fonzi1289

Yeah i reseated the injectors and put oil around the o rings i am guessing it my MAP sendor because i had to make a custom gasket for it to fit the intake mani

ryansalazan

iTrader: (6)

i bet its the map i think i need to put a map gasket on mine as well. goodluck on this little project

Fonzi1289

Yeah dude if thats the problem its a small annoying one

IonNinja

let me know how this works out for you

i'm having random misfire issues as well, have been for months

i think mine is caused by the injectors but I can't seem to fix it...misfires hard under boost too

Fonzi1289

Mine just at idle.. havent boosted much.'
Have u tried using a fule cleaner and seafoaming it?

Fonzi1289

ok well still havent found a fix.. next thing to do is check for vac leaks.. what should our cars vac at???

On the upside i got my wideband and springs!!



.....



Also my springs need to be repainted.. they r Arks prototypes.. what should i paint them with that would flex and protect it from the water.. its pouring here..

06_ion2

I see 22-24 vaccume but you could be different.

Rippin07

You haven't mentioned if you checked your ignition coils. Is it a random misfire or is it a specific cylinder that keeps popping up? If its a specific cylinder try switching the coil to another cylinder and see if the misfire moves with it. If not, then do the same with the spark plug and see if it moves, this will eliminate what the problem is.

Fonzi1289

I see 21.5 maybw a small leak?

And its a random mifire..
A guy checked and said they were fine by pulling the plug on each one while it was running.. when he did that it ran all crappy like it was running on 3 cylinders each time

IonNinja

injector cleaner yes, seafoaming no...

Its either gotta be my injectors or ICM I'm sure

do slightly blown motors misfire or just refuse to run at all?

Fonzi1289

HAHA slightly blown?
U could have jumped timing a bit or ur timing chain tensioner could be going out.
And yeah thats what i am thinkin on the ICM

Fonzi1289

Bump guys i observed something else..
With my heater on my car feels like it lags a lil bit the my vac goes from 22.5 all the way down to 19-20.. only when i turn the heater on..'
Why would this be???

Bump for some help

33jrod33

Im having the same problem. I don't see how Im supposed to check the ignition coil when it uses the the coil, so no troubleshooting.Changed the O2 sensor, spark plugs, and checked the fuel injectors, and they look fine. Cleaned the throttle body and it stopped the idling but not the kag in power.

xxxxsh4d0wxxxx

iTrader: (1)

I've got a weird idle too.. It'll idle fine then randomly.. Uh, sputter, is the best way I can describe it.

Here's my list:

New spark plugs with correct gap.
New fuel filter.
Cleaned air filter.
Cleaned MAF.
Cleaned TB.
Switched gasoline. (stations and grades)
Ran Seafoam through the brake booster line and gas tank.
Changed oil. (nothing to help, just had to be done that day, so I added it to my list)
Checked for exhaust leaks.
Checked for vacuum leaks.
No CEL.
No RPM fluctuation, they stay steady.

Oh well.

Fonzi1289

Try changing ur icm

xxxxsh4d0wxxxx

iTrader: (1)

Where is it?

Fonzi1289

Actually i am not exactly sure yet.. ask cobaltsky05.. he is where i am getting my info from

33jrod33

So i figured out what it was. I went to ebay and purchased this ignition control module.yupyup ) replaced it in the parking lot and VROOM VROOM lol running like a champ again.

IonNinja

nice, I've already gone through one of those...was my fault though

33jrod33

haha. how do you get it to misfire in the first place. so i can avoid buying another lmao.