had simtec fitted thursday but had a coil pack fail so we got a friend to bring 1 over to me.Put it on mapped it up fine pull s really well.mapper left then took friend around the block fine .next morning bat flat always a prob as bat is fcuked changed the bat.driving to work then started juddering in boost doing the same kind of judder as when boost sol was dirty used some carb cleaner in it didn t solve it.On way home from work was crap again then few miles from house startred running fine again boosting nice.Got in her again running like a pig again any ideas also on way to work started try det it self.

iv tried cleaning boost sol again
tried the coil packs there fine

any ideas also new plugs 300 miles ago and ran fine before
any ideas people haven t got money to put in shop either due to simtec lol befor u say it lol

 

Have you checked ALL the coils - assume yours is a 93?

 

yes have check coils.J ust checked plugs driver side sooted and passenger side is more a less ok any ideas people

 

Datalog and send to mapper to take a look?

 

how i do that bob.

if a cam shaft or crank sensor was faulty would it mis fire or just not start

 

any ideas people think i checked everthink

 

From our earlier conversation, it sounds like you've got more than one problem with the car.

Ensure your ignition system is up to scratch - It's the most common fault to arise when upping the boost (and power) on a 92->96 engine.

The only way to be 100% sure that the coils are good is to replace with new OE or aftermarket items, or convert your Ignition system to Phase 1.5 Coilpack, ignitor and leads.

Remove the rubber boots,check all coilpack ends for hairline cracks.
Check the potted end of the coilpacks (where the 2 wires come out on the back) for burning/discolouration.

Be sure to support the coilpack when undoing or tightening the M8 retaining bolt - If the coil is inadvertantly allowed to twist when the bolt is undone, it will crack the coil.

Remove all sparkplugs, check and gap to 0.6mm and refit.

HTH

 

removed plugs to see all fcuked they had done 500 miles u could see where they were breaking down there a lil black crack.would mapping ruin the plugs do i need to change to 7s?
Put some old plugs in run fine when it boost s still break down but could def be 1 of the plugs or a coil playing up how annoying are these subarus lol

 

Yes mate, should be running them anyhow imho.

 

but wouldnn t cause to mis fire would it

 

put 7s in and now better just missing in boost i checked them when i got them out the box and there roughly 6.5 ain t they? say i was 0.5 out would it miss any help be great

 

alright done all gaps again still doing it its tryin to det everytime i try hard boost i can build revs up but soon as foot to floor it judders (misfires)im starting to think a sensor any ideas people please

 

If you havnt put new coils on I think I would chap.
Same **** with mine a while back after fitting scoobyecu chip. Put X-spec coils on all round, new pugs with correct gaps and sorted.

 

oh right runnin ok now but i pulled out a relay and it runs fine now.Its a red relay in engine bay fuse box if u looking at it its the top red 1 to the right any ideas

 

Fuel pump?

 

hi lee hows it going. i thought it was but how can it run with out the fuel pump relay in?As soon as i took it out u heard the engine revs went up a bit now runs fine any ideas

 

Pulled it out and left it out? Or put it back?

If it's the former, I'd be finding out what it did before I ran the car very far.

If it's the latter, it may have been a poor connection, or an intermittant with the relay.

 

Pulled it out and left it out? Or put it back?

If it's the former, I'd be finding out what it did before I ran the car very far.

If it's the latter, it may have been a poor connection, or an intermittant with the relay.

 

i took it out and left out. former or latter im confused matey

 

Any help??

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