When chunk took my car for a test drive before i bought it he said it was pinking and that was because it was running lean, wot does pinking mean? wots happening?

 

he was gonna help me sort it out but obviously cant due to being in hospital after the op (get well soon bud). can you tell me where i can start to find the problem and fixing it?

 

yaseen

Pinking is the same as detonation. Its when the fuel ignites before it should. I think the damage is caused by 2 shockwaves of the ignition of the fuel before it should happen and ignition of some fuel when it should. The 2 shock waves collied causing damage. That is what you can hear. I read it on the internet a while ago.

 

You can try some injector cleaner as they may be blocked. Resetting the ECU may help. The usual culprit are the O2 sensors

 

Stuart

i was told it could be the fuel regulator or low fuel pressure

i was told it could be the fuel regulator or low fuel pressure

 

Yes, low fuel pressure causes a lean mixture and hence detonation as can the timing being too far advanced. There are many causes.

*****x! i aint gonna be able to check all that!

i'd take th car to zedworld to have it sorted out but i dnt wanna drive that far if its gonna be bad for th engine. can anyone help me out?

i'd take th car to zedworld to have it sorted out but i dnt wanna drive that far if its gonna be bad for th engine. can anyone help me out?

 

I'm probably going to get b****xed for saying this but Leicester to Fazely is not that far. Take it real easy and you should be ok. Detting usually occurs whilst boosting or at higher rpms. Alternatively, speak to Jeff (ZedWorld) and get him to arrange a flatbed to pick up your car.

ther must be someone in leicester apart from chunk who can help me out??

I'd check the obvious and do preventative stuff before you start spending money on garages - get smithy's fuel kit and replace the lines (it's quite easy, even I managed it), change the fuel filter, and make sure you have no boost / intake leaks.

 

Remove boost jets / bleed valves if you have them!

 

I did all the above and my det has gone. (Was a fairly consistent problem before, would get it at about 5k revs on three quarter throttle.)

 

How's the idle? That often shows up related problems...

th idle at th moment is pretty rough, especially when its really cold, stil rough when warmed up tho, bobbing up and down. i cant hear anything bad from th engine so maybe i just dnt have very good ears or dnt no wot to listen for. thanx for th info

th idle at th moment is pretty rough, especially when its really cold, stil rough when warmed up tho, bobbing up and down. i cant hear anything bad from th engine so maybe i just dnt have very good ears or dnt no wot to listen for. thanx for th info

 

Sounds like either the good old ECU temp sensor (yellow connector at front of engine near rad) - have a look and see if the contacts have gone furry, if the connector sits properly, etc...

 

...or boost leaks! Looks for split boost hoses (but there are about a million boost hoses.)