yesterday i wasn't driving my car hard at all (for once). i was driving for a good while then in a parking lot i was slowing to a stop and my exhaust note completely transformed. it sounded exactly like a WRX. EXACTLY. so i got a blinking CEL. on the way home i felt like i had maybe 50hp and it smelled VERY RICH. also it drank a TON of gas. i made my way home and read the code. i didnt write down the numbers, but the codes were for:

1) cylinder 1 misfire
2) cylinder 3 misfire
3) multiple cylinder misfire
4) ignition system misfire

so my uncle and i took out the coil packs and used an ohmmeter. he measured the resistance between each of the 3 prongs on the coil packs and between the part where the spark plug touches and each of the 3 prongs. he did this with a spark plug in the coil pack and on the naked coil pack. 3 of the coil packs gave a reading of 0, and 1 of them gave a reading. we figured the coil packs needed to be changed. 2 of the spark plugs were loose when we checked, so we retightened all of them properly.

so today i swapped a friend's coil packs in and the car still sounded like a WRX and it backfired. no progress. my next step is to swap out the spark plugs for new ones...

any input would be greatly appreciated!



mods that might interfere:

tuned with AFC Neo (stock injectors)
NGK 7173 plugs
CTSC/AC making 5psi currently
electronic boost and water temp gauges
comptech esm

 

could be anything. Im in the same boat right now.. could be any of these

Sucked water in
Bent/burnt valve
Bad gas
Bad injectors
Fouled plugs
i know there are more. Try a compression and leakdown test first and see if everything is good there. Then injectors

 

injector?

 

You have the wrong plugs. You need to swap with:

NGK Laser Platinum PFR7G-11S

Try that first.

 

Make your plugs aren't loose.

https://www.s2ki.com/forums/index.php?showt...post&p=13739895

 

Did you use a pnp harness for the neo or just tap the wires. I had the same thing happen to me and the problem was my AEM FIC. I had a lose wire somewhere. Once I rewired the stock harness and purchased my pnp harness the car ran perfected again.

 

[QUOTE=negcamber,Jul 3 2008, 04:26 PM] You have the wrong plugs.

 

I ran 7173 plugs without issues. I would check the afc and esm connections for shorts.

 

a large amount of people have run 7173's with Comptech and Vortech superchargers with no issues due to the plugs.

 

i'm going to get teh plugs mentioned by negcamber then check out the wiring on the esm and neo. but right now i'm on vacation..as soon as i get back!!

thanks guys!