What else should you replace when changing the timing belt?

[Daveho1]

call the wreckers

[rhys.l]

Might call up my local Dayco specialist

[cbauto]

Yeah they are champions. Getting a few random idle problems, so the fun isn't over yet.

Mine idles funny now after I did all the service stuff.

Higher idle when a/c is turned on is a little slow.

I think need to clean iacv and adjust fitv.

After resetting ecu, its pretty good



Probably all due to flush and change of coolant.

Shit clogged in there

[Daveho1]

Might call up my local Dayco specialist

you cheeky kun7 lol.
+1 for cleaninng the iacv and the fitv then resetting the ecu

[rhys.l]

Thanks fellas. I cleaned the IACV. B18c7 doesn't have a FITV. ECU has been reset, coolant bleed about a million times. Still having dramas.

My problem - If you are driving around with the car cold and put the clutch in (like stopping at the lights) the revs drop past the proper idle point and the car almost cuts out. When warm, this prob is gone. Instead, when you jab the throttle quickly from idle (like for a quick take off), the revs initially drop (to like 500rpm or less) before going up as they should. The actual idle rpms are fine (~830 rpm warm).

[Jasemas]

Have you tried adjusting base ide?

[cbauto]

Sounds normal, how many k's on the car?
Adjust throttle cable, clean throttle body, clean everything, that's all you can do.

Clean injectors. Fuel filter. Etc.

After resetting ecu, should normalize after time.



With revs dropping when you stab the throttle quickly, you will always get idle drop before rpm rise.

Reason for this is delay from mechanical throttle cable.
If drive by wire, no delay, is better.

Cable puts more air in, takes a fraction of time for sensors and ecu to adjust fuel.

Thanks fellas. I cleaned the IACV. B18c7 doesn't have a FITV. ECU has been reset, coolant bleed about a million times. Still having dramas.

My problem - If you are driving around with the car cold and put the clutch in (like stopping at the lights) the revs drop past the proper idle point and the car almost cuts out. When warm, this prob is gone. Instead, when you jab the throttle quickly from idle (like for a quick take off), the revs initially drop (to like 500rpm or less) before going up as they should. The actual idle rpms are fine (~830 rpm warm).

[rhys.l]

No haven't mucked with that screw. I haven't see any reason to when it's idling where it should (800-850rpm)

Sounds normal, how many k's on the car?
Adjust throttle cable, clean throttle body, clean everything, that's all you can do.

Clean injectors. Fuel filter. Etc.

After resetting ecu, should normalize after time.



With revs dropping when you stab the throttle quickly, you will always get idle drop before rpm rise.

Reason for this is delay from mechanical throttle cable.
If drive by wire, no delay, is better.

Cable puts more air in, takes a fraction of time for sensors and ecu to adjust fuel.

I can live with the rev drop after the throttle stab, but there's no way the cold idle cut out is normal. Hopefully you're right and things sort themselves out over time. Car has 114k, I've cleaned the throttle body, and I suppose I try some of that other stuff. It's all been done over the last 18 months though. Is there any point looking at the TPS? It's way too big a coincidence this has all happened after the timing belt change..

[cbauto]

Sorry it sounds like jibber jabber. Typing on the phone.

[rhys.l]

Adam and I did the following this afternoon. Problem is still there

- IACV cleaned
- Throttle body cleaned
- New spark plugs
- TPS tested (voltages are normal)
- Coolant bleed multiple times
- ECU reset multiple times
- 02 sensor unplugged, no difference
- Accessory belts loosened
- Vacuum leaks checked (nothing)
- IACV unplugged (car doesn't idle, throws code)

All I think of that's left is to loosen the timing belt somewhat. Does anyone think having the timing belt too tight could be the cause? Clutching at strings I know.
Only other option is to get a new IACV, and see if that helps.

[EKVTIR-T]

drive by wire has no lag....?


you learn something new everyday on OH...

[cbauto]

drive by wire has no lag....?


you learn something new everyday on OH...

In theory.

Do you have Anything positive to input?.