spark plugs and more... someone please help

[p0u1 14]

hi people

as some of you might know iv had running isues for some time now, iv changed evrything that could keep my car from losing its powwer in the higher revs, but still not working right.

i bought new ht leads and plugs on the weekend that passed and im still having problems above 3k revs, the plugs i bought this weekend are ngk twin spark plugs they were not the right plugs for the car but very close, there abit hotter, i still think that im posible having problems because there the wrong gap, so dose anyone know what i should gap them too?

[VR6Nat 9]

It should be 0.7

[VR6Nat 9]

here you go...

[p0u1 14]

so 0.0028 inch thanks nat, hopefully i can make my car run like a 2.8 and not a 1.3 lol

[VR6Nat 9]

no its 0.028 inch.

Hope that sorts it for you!

[p0u1 14]

my bad lol, same a vr6 that dont like to rev over 3k rpm and still likes to drink like a vr6 is upsetting lol, thanks

[p0u1 14]

well just had a quick look at the old plugs which were running a bit worse than the new ones and they were at 0.038 inch.

[Lukey. 381]

bentley manual says OBD1 should be 0.7 OBD2 should be 0.8

[VR6Nat 9]

that was the haynes tech data that i got that from... doesnt mention OBD1/2 differences

[rosserooni 0]

If the plug gap doesnt cure it try changing the coilpack for a known working one.

My misfiring problems were down to the leads or the coilpack everytime.

[andyfloss 0]

although it could be the problem iv not heard of pkug gaps making THAT much noticable difference maybe only slight.... i was told 0.7 anyways and mines obd2

[p0u1 14]

well i woke up at 7 today and regaped all my plugs and still no cure :-/, i dont even know if its a missfire as theres no bangs or pops, and its to high in the rev rang to feel the engine go unsmooth, alow since changing my plugs my problem of losing power has gone up 1000rpm and is not as frequent im suspecting it is a missfire

[p0u1 14]

would hoter plugs need a smaller gap? as i have sligtly hoter plugs, all my plugs are at 0.028 inch

[VR6Nat 9]

What else have you tried?? im not so sure the plugs are the problem now...

Have you thought about replacing the fuel filter or maybe fuel pump incase its got some cack in it?

I guess youve done the obvious, leads, maf, coilpack etc?

Best bet at this stage would be to get it on vag com or you may be chasing your tail forever... at least that will point you to the problem.

[p0u1 14]

ok the list of parts: new leads, coil pack, spark plugs, lamba sensor, maf, fuel filter, cam sensor and crank sensore, my car wont talk to vagcom so its a bit of swap this it might work, i was thinking maybe the fuel pump might be giving me problems, i have a golf gti for spares i will have a go at swapping the pump tonight, the only way i can describe it is i floor it in what ever gear, its fine up to 3-4k revs then loses power, i can hold it all the way to redline just a bit guttless, then if i go up a gear, making the revs drop below 3k rpm the power is gone for about half a secound then comes back all the way to 3-4k rpm again

[craggsy 91]

Have you tried disconnecting battery for half hour to reset ECU

[p0u1 14]

yes try that too, still no good, i just got to be thankfull im almost coming to the end of the parts that could cause the problems

[VR6Wherry 0]

Have tried cleaning the throttle body, that's what happened on my GTi after a good clean it seemed to solve the issue.

[Lukey. 381]

is your air filter, intake pipe or cat blocked up thus restricting flow

[p0u1 14]

oh yea i changed the cat and air fillter too, so nothin should be blocked, and i cleaned the tb when i started getting problems and it had no change

[yakuza racer 16]

check that the intake pipe has no cracks in it, this robs you of power, it was my problem......

[p0u1 14]

its robbing like half of my engine power or more, but yes i will have a look latter as well

[p0u1 14]

well i changed the pump today, not to hard but you skink of petrol for the rest of the day. but still its not fixed, i might try regaping the plugs a bit smaller see if that helps

[p0u1 14]

ok i checked the intake, theres no problems there, the coil pack has noo cracks in it, theres new ht leads and plugs, the maf, lamba, cat, fuel fillter, cam sensore and grounds have all being changed, im lost now i still have the problem of losing power at about 3,6k rpm its winding me up a fair bit now, has anyone got any idears of where next to look :-s

[Lukey. 381]

if youre running out of places to look might be worth having a specialist look at it mate