4AGE stalling?

[RUF086]

hey guys,

sometimes when im driving and im coming to a stop the idle drops and the car stalls? any ideas?

this only happens sometimes?

Bigport engine
No cold start
Suspect eh TPS is fecked

cheers

[Skylar]

Bro, like, you're giving us no information.

What's idle set at?

What's timing set at?

Does it misfire ever?

[RUF086]

sorry,

im not really sure what the idle is set at because its different everytime i turn the car on lol. any from 1-2 grand.

timing is at 0.

ive just had a missfire problem fixed (turns out the 4th injector plug was slighty off).

it does seem to slightly miss high RPM.

hope that helps, cheers

[ke70dave]

im afraid your timing cant be set to zero, or you woudl go knowwhere! (or somewhere very slowly). set your ignition timing to around 12-15 before top dead centre.

unplug your tps, and give it a go. it should be alot better as the engine revs will drop slower.

if unplugging the tps improves it, then try adjusting the tps. there is a way to do it properly, i just trial and error'd it and got it going well. with the engine running you can move the tps around and you will hear the tps "click" into "idle mode".

if it is misfiring at high rpm, your plugs might be on their way out. give them a clean with a wire brush.

if your idle is all over the place, it means you have an air leak.

air in = engine revs up.

if you have no cold start, then you can block off all those water/air pipes that go to the throttle body. and adjust the idel PURELY by the butterfly. this is what i have done. problem is its a pain to start if its really cold (starts fine just stalls easy), and you got let it idle for a minuite or 2 before taking off when the engine is cold. but id hope you did that anyway!

[Skylar]

So, I'd start at increasing the timing to ~16deg at fully warm below 1000rpm.

Then check spark stuff like cap, rotor, leads.

and maybe check fuel pressure after that.

[Skylar]

So, I'd start at increasing the timing to ~16deg at fully warm below 1000rpm.

Then check spark stuff like cap, rotor, leads.

and maybe check fuel pressure after that.

[ke70dave]

ahhh make sure you bridge those terminals (e1 and t1?) in the diagnostic box, when you adjust the timing. that might be why your getting a reading of zero.

[hao.]

It's T and E1 in the diagnostic box

[RUF086]

thanks for the feedback guys,

i spoke to my mate who did my timing and he said its not set to zero? i dot know where i got that figure from lol. he said it is about 15-16 degrees

the revs do drop while slowing down and hunt until im driving again, could this be related to a vacum leak of some sort?

and where is this diagnostic box?

cheers

[hao.]

It's a little grey plug thing that should be in your engine loom somewhere.

It looks like this: