power boost valve!!

[mach]

Hi, when i got my car it was fitted with a power boost valve! I want to take it off as my MPG is affected and i think they a re a load of sh*t tbh. Anyway yesterday i removed it, changed the plugs and HT leads and the car would not tick over as it wasn't getting enough fuel through. I put the power boost back on and the car run fine.

What should i do? would disconnecting the battery for an hour reset the ecu and make it think it never had it on in the 1st place?

thanks

 

[cambs_nige]

You have nothing to lose but an hour, I would deffo disconect the battery and see if an ECU reset helps. Just remember when you reconnect it that you should let it idle for 5 minutes or mor.

 

[Mike]

There's a guide on this forum. I've taken the liberty of copying it for you.
This is the basic reset which will restore the various positions back to factory setting.

Disconnect the battery for a minimum of 45 minutes. Simply remove the earth side (-) and pull to one side.

When you reconnect the battery and start the car for the first time do NOT rev then engine for 5 minutes. This allows all the postioning motors to go back to default. Once the 5 minutes is up you may stop and restart the car then drive normally.

All the "reset" does is put the positioners such as the IACV back to factory setting. The car will then relearn the positions required for the conditions you put your car under. However if you drive your car hard from the off after doing this, it will expect to be driven like that al the time and therefore may feel a little sluggish unless really pushed. Also, whilst this relearning is taking place you may experience higher running costs.

You will not have to reprogramme any keys afterwards and your radio should not loose its code either. You will have to alter the time unless its a H2 where if you put it to an FM station it will pick up the time automarically.

Not sure who wrote this, probably Wimmy.

 

[mach]

well i've tried unplugging the ECU and it did nothing!