After changing my 02 sensor and Maf I still get these engine light problem and it wont go away. Once I even had a fuel cut at 4000 rpm.

Can anyone shed some light on this please. No idea what is wrong with the speed sensor and I also have cleaned up the idle solenoid too.

Car drives fine

Your helps are much appreciated

 

Fault code 33 is the Vehicle Speed Sensor mate,which if i aint working put's the CEL on (it happened with mine).
Maybe your coil pack ? or the boost solenoid packed in ?
hope someone with more knowledge can help.

 

You may have disturbed the speedo cable whilst changing the o2 sensor. It's may have come loose from the speedo clock or further down the cable (gearbox end). Get the cable & connection check. If your speedo is working fine then it could be old stored ecu codes that have not been cleared or reset.

 

The speedo is definately working fine so I got no idea what is wrong there.

Idle control solenoid is the one keep giving me CEL, but the CEL will go off if you let the rev drop to the bottom. Then it keeps coming back on again, specially at low speed cruising at low revs

 

If the speedo is working find then I would think the 33 fault code is a old stored code. A reset should clear that code.

As for the iscv it may need changing or check the hoses for leaks etc.

I have got the same problems, nearly solved my speedo fault, just waitng for another speedo cable (longer type) from Grade A who supplied the short cable the next day.
I have not clean my iscv but have a spare to bolt on hopefully that will clear the ecu fault. I am occasionally getting a slighty higher idle whilst stationary.
I will do that as soon as the pape type gasket arrives from the main dealer.

Ticky

 

http://www.subaru-impreza.org/bbs/sh...ighlight=handy