LADS PLEASE I NEED HELP . when i put the foot down on my rs turbo its a 2litre zetec turbo engine and when i floor it it comes on boost hard and then just pops and misfires etc / its perfect on normal driving but does it when its about 200rpm away from the reline so it boosts up and then just misfires ...could it be the plugs or something???? i aint no mechanic please help

 

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What management is it running? What boost are you running?
Initial thoughts would be spark timing under higher boost levels.

Matt

 

What plugs are you running and what are they gapped at? Try closing the plug gaps a little.

Martin

 

omex 600 i had the sensors checked on a laptop to see if they all work they all seem to be perfect. i changed the plugs and it still does the same thing .. i run the coil pack on the plugs conversion so im changing them tomorow and then see if thats cured.... could it be the fuel filter? thanks for your help lads i appreciate it

 

r u using the correct plugs/gaps?? and also could be a fueling prob, so suggest get it to a pro and save yourself the headache!

 

Yes fuel filter could also cause this as it leads to fuel starvation, so many people seem to think it's a non servicable item!

Martin

 

ok i changed the coil packs today and still have the same problem so its leading me to think its the fuel filter or could it be the maf??? not suire what a maf is someone told m,e it could be that?? please help

 

could it be anything else

 

fuel pump?

 

it had a pump about a few months ago and was new and a racing cossie pump and its buzzing like normal ... could it be on its way out?

 

MAF (Mass Airflow Sensor) is a wire gauze that works on a hot wire principle, it has the ability to measure air flow as well as temperature, usually I think the general consensus is that if the car struggles above 4K the MAF could be faulty (Usually it just requires cleaning) I think when there unplugged if the car performs better then it confirms this.

I don't think it is in your case however, the fact it only happens at high RPM would suggest ignition or fuel to me.

Martin

 

thanks mate ill try a new pump then and filter and see if its cured

 

Near the middle of your thread you stated that you're running omex..are you sure you're using a MAF and not a MAP? as said before I would look to ignition. Fuel would be more of a gradual decrease of power as the boost rises, rather than a sudden loss.

Matt

 

It could be ht leads braking down under load

 

He hasnt got ht leads i dont think mate, im sure he has got coil on plug.

 

yeah i have coil on plug.. and im using omex so it must be a map and not a maf ... anything i should change?