Fixed but still broken.

[Spyda]

Some of you know I have had problems with my car being sluggish and not revving smoothly. Mat was right it was over fuelling.

I swapped the "performance" chip out and put in the original (properly this time so it worked).

The car now reves very smooth and is an awesome drive, pulls properly. Still slow though and digi-lag is noticeable, but a lot better to drive.

The problem i have now is the idle and jerky-ness in 1st and 2nd.
The idle goes up and down from about 850 to 1000 at 1sec intervals at normal temp.
I have done the following:
Adjust idle screw on TB
Check for vac leaks
Fiddle with C0 adjuster on MAF (i don’t have the c0 measuring device)
Re-set ecu, where u unplug the breather hose and temp sender and rev 3times past 3k rpm etc. It had a really hard time getting past 3k rpm without the breather hose attached.
Nothing really seems to help it.

I have to rev the car to about 3k on take off and keep it there till the clutch is in for the car no to jerk. The jerking is heavy if you try to take off normally and reves bounce up and down about 500rpm, the more gas you give it the harder it jerks. It sometimes happens in 2nd gear when i am slowing down below 2500rpm and want to move off again.
All a little jerk is noticeable on all down shifts with light throttle applied to keep speed.

I didn’t have these problems before removing the performance chip and putting in the stock one. Also with the standard chip there is a lot less engine braking.

Any ideas?

Is it just a matter of properly adjusting the C0 and idle screw?

[Golf Loon]

Just one to check mate. There is a small vacuum hose from the Fuel Pressure Reg on thhe fuel Rail. I have seen regs with a ruptured diaphram sending fuel up this line giving the symptoms you describe. Try cranking the motor with the intake boot removed and see if you get fuel into the intake.

I think you are taking the right path. Get the car running well in standard trim, then modify.

[velly_16v_cab]

personally if you dont know what your adjusting then take it to someone who does.

sounds like the car need to be tuned, best get it to your local tuner and set up correctly.

[Spyda]

Just one to check mate. There is a small vacuum hose from the Fuel Pressure Reg on thhe fuel Rail. I have seen regs with a ruptured diaphram sending fuel up this line giving the symptoms you describe. Try cranking the motor with the intake boot removed and see if you get fuel into the intake.

I think you are taking the right path. Get the car running well in standard trim, then modify.

Cheers mate, ill give that a go today.

personally if you dont know what your adjusting then take it to someone who does.

sounds like the car need to be tuned, best get it to your local tuner and set up correctly.

How am I going to learn anything doing it that way? I might aswell get a new golf then.

[velly_16v_cab]

you learn buy asking them how they fixed it and what them.

better than beating yourself up over it

[Spyda]

you learn buy asking them how they fixed it and what them.

better than beating yourself up over it

can u suggest a place

[velly_16v_cab]

sorry mate i cant, not much need to have the 'lancer of love' tuned up

i am sure one of the melbourne crew can point you in the right direction

[Spyda]

Just one to check mate. There is a small vacuum hose from the Fuel Pressure Reg on thhe fuel Rail. I have seen regs with a ruptured diaphram sending fuel up this line giving the symptoms you describe. Try cranking the motor with the intake boot removed and see if you get fuel into the intake.

I think you are taking the right path. Get the car running well in standard trim, then modify.

I tryed it today mate, there is no fuel going in to the intake.

I have replaced all the vacume lines not long ago. Well not all. All the ones i could see on the intake side of the engine.

Any other ideas?

sorry mate i cant, not much need to have the 'lancer of love' tuned up

i am sure one of the melbourne crew can point you in the right direction

What am i looking for exactly? A mechanic or a place with a dyno or is there places that only tune cars?

[Spyda]

The problem is coming back. The problem that i thought i fixed when i removed the chip.

It seems to be using more fuel again as the economy has decreased. I got 140km out of the first 1/4 tank and then the next i only got 90-100km, the same i got with the chip in.

HELP!

[GoLfMan]

take it to Volkspower (in Burwood, just down the road from the DOVW meet point!), hand him the keys and a wad of cash and ask him to make the problem go away