Running On 5 Cylinders

[ToF]

Could be your ignitor module also....

I know what you mean by it not sounding like a fuel backfire - the car actually sounds like a WRX... and will drive like a peice of shit..

Nah it stopped sounding like a WRX because for the most part it is running on all 6 but it just has that misfire randomly every second. I took it for test drive and it certainly goes fine if you know what I mean .

[Col-GTSX]

Only times this has happend to me...

Was after i degreased the engine and had water galore in the spark plug wells... Also one other time was due to a gapping issue...

It would have to be a dodgey contact in the ignightion circuit or the ignightor itself is playing up or there is a miss communication along the line there somewhere...

[dangerman4]

pull all your plugs out and do a compression test..

mine sounded ruff at idle but went fine and still made good power on the dyno

i did a compression test and had cracked ringland in no 6..

rings were still intact so it was still sealing sort a

[Doctor 30]

This thread just has potentially saved me $88 buying another coil pack. As soon as I read the "sounds like a WRX and drives like shit" I knew this is the same problem that mine has developed. I actually started racing to work because mine would crap itself after 20 mins before the plug would break down.

BTW, don't buy plugs in the multi blister packs as they are the rejects from the single boxed items (so I have heard from a mate in the trade.

[Doctor 30]

coil pack is cracked but needed plugs anyway

[gtrzilla]

+1 for spark plugs

this also happened to my s15 but that was cos i hooked up teh power fc wrong and unplugged the injector 4 pin on the loom

[nismobdykit]

I had this exact problem with my RB20 180. It turned out to be a coilpack.

[bombtrack]

Could be your ignitor module also....

I know what you mean by it not sounding like a fuel backfire - the car actually sounds like a WRX... and will drive like a peice of shit..

Yeah, without going into the same sort of detail in the rest of this post... my car does the whole "sounds like a WRX and drives like a piece of shit" thing randomly at the moment. I am almost 100% positive it's my coils. Replacing the whole lot with splitfires this weekend.

I hope for the sake of your pocket book, it's your plugs... coils are exxy!

[lunjiaow]

hmmm my car recently started doing this. How did you fix yours? I have changed sparkplugs, and have splitfire coilpacks in. Thinking its the ignition module, except what are the symptoms of the ignition module stuffing up?

My car hesitates heap from stop start, turning corners and giving it gas, but after the revs picks up it goes fine. A/F ratio reads 20:1 when cruising, giving it some gas the A/F ratio goes to 14.7:1. Can it also be AFM?

[r30kansai]

I have this exact problem but it is the ignition module, when the car warms up (20 - 30mins of driving) the 5th cylinder will drop and start to sound like a WRX as mentioned before, also before it drops the cylinder going around corners it will hesitate.

I know its the module because when the cylinder drops, if I press really hard on the module itself it will start firing again.

Initially I thought it was the wiring & the the plugs so I replaced them, but after playing around a bit more I realised it was the module. It is a bloody reconditioned module to, cost me $450.

I just bought a module from Japan, fingers crossed this one works.

[lunjiaow]

Yeah that happened to me too execpt on 6th cylinder. I checked injectors and coilpack wiring and changed my ignition module, and the car runs perfectly now.

Goodluck on getting it running right.