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Running On 5 Cylinders

ToF

By ToF,
in Engines & Forced Induction

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ToF Experienced

ToF

Posted
  • Author
Posted
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 Grand Master

Col-GTSX

Posted
Posted

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 Mentor

dangerman4

Posted
Posted

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

  • 1 year later...
Doctor 30 Community Regular

Doctor 30

Posted
Posted

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.

bombtrack Experienced

bombtrack

Posted
Posted
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!

  • 4 months later...
lunjiaow Community Regular

lunjiaow

Posted
Posted

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?

  • 2 weeks later...
r30kansai Collaborator

r30kansai

Posted
Posted

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.

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