It hesitates to rev above 2000rpm soon as it hits that the revs drop down
And if you hold the revs just at 1800 - 1900 rpm it misfires abit and when your driving it will just cut out not often though ? it boosts fine starts up first time not misfiring

 

I would check plug gaps and crank and phase sensor settings before looking at anything else

 

i had a problem like this and it was the coil, try and borrow a coil to try on it

dowt it would be the plugs or crank sensor if it cuts out a random points, not sure what the phase sensor does to be honest

 

If it was plug gaps it would blow the spark out on boost I thought ? I thought phase sensor to be honest

 

It has a group a coil on it at the moment,could try a standard one back on it but surely if it was the coil the car would misfire and not boost fine ?

 

What does the phase sensor do ?

 

Why do air to air injector making chatter noises ?

 

Anyone ?

 

Could this be the leads breaking down ?

 

Help me people.... Haha

 

mine was doing the same put in some champion plugs QC59C went like a scalded cat after that .

Regards

Dave

 

What yours would hesitate to rev above 3000r then the revs would drop ? And it was your plugs ? It was on champion c59 plugs do I changed them but it still does it ?

 

Have you tryed the coil? Where are you based?

 

Then i would start looking at the plug leads . Just wondering does it do it from cold when you start up or when the engine gets hot . I have found that plug leads and coils if there is a problem with them start to break down when they get hot its happened to me more than once so try starting up from cold give it a bit of pedal and see does it hesitate from cold i bet it doesnt

Regards

Dave

 

Hi dave

Yeah it does from cold aswell....

 

Mine was a bit like this and I wasn't really sure what to change, I cheated and fitted wasted spark and it solved the issue completely but I am now not sure what the cause was as I have basically changed everything. Couldn't see the point in buying loads of standard stuff when I wanted to go wasted spark anyway.

 

Well the only thing i can think of is fuel or lack of fuel pressure its a f**k when you have a problem like that cosworths are not that technical under the bonnet you might be better bringing to some one that can plug her into a computer or a rolling road as that would wreak your head look at the fuel thing first though !

best of luck

Dave

 

Hi dave wouldn't it do it more when it's on boost if it's fuel pressure ? well it's not misfiring so it can't be the coil otherwise it would do it all the time surely ? It's weird because the air to air injectors start making chattering noises when it's not moving ?

 

Im lost eh eh eh , bring it to someone ,

Regards

Dave

 

Faults like this are the most irritating spent ages trying to sort this

 

 

It hesitates to rev above 2000rpm soon as it hits that the revs drop down
And if you hold the revs just at 1800 - 1900 rpm it misfires abit

 

Ecu was the fault