Has anyone found the solution?

[Pwillson]

Hi all,

Ive been reading here for a while. Searching and going through and although many people have this problem, no one has posted a definite answer.

Ive got the low rev cough/misfire. Only underload, only sometimes, sometimes a lot sometimes not at all. Always between 2-3k. Once you pass it the engine runs fine and pulls great.

Ive heard lambda sensor, maf sensor but has anyone find the definitive answer, I know a lot of people have this problem.
Ive had a code read twice by two different people. Also have an EML on , but this I think is due to no cat. Which is a recent change, the miss has always been there.

 

[lokqust]

I'm now in the same boat as of 20 minutes ago. Sounds like a boxer engine and then cut out. Any ideas?

 

[DannyR]

Injector?

 

[Russ_16v]

Won't be MAF, F4R's don't have one.

 

[Hawk182]

could also be a faulty coil pack, have to code read it see what codes are stored

 

[lokqust]

Best way to test the injectors gents? Just unplug one and replug to see if the problems worsens or stays the same?

 

[Russ_16v]

It's a way of testing if one has failed mate, though one could be failing, so it's not a 100% fool proof test

 

[lokqust]

Cheers russ I'll give that a go. This cup is turning into a little b*****d quite quickly. Hopefully once all the niggles are sorted I'll be good to go. What's the rough cost of an injector?

 

[Pwillson]

No. It's not cutting out and it sounds no different. It's just the one or two coughs on the way round the rev counter.

 

[Chris205]

pre-cat lambda sensor mate, had exactly the same issue, then after 3k rpm it takes off

 

[Russ_16v]

Cheers russ I'll give that a go. This cup is turning into a little b*****d quite quickly. Hopefully once all the niggles are sorted I'll be good to go. What's the rough cost of an injector?

They are usually very reliable mate, so id buy a used set off here

 

[DannyR]

Ive got a set for £40 delivered

 

[lokqust]

Ive got a set for £40 delivered

I'll have them dude.