Diablo333

Valid points there Colin, On the topic of the ACIS valve, there has been a fair amount of discussion about the success / viabilitiy of the various ACIS / TVIS implementations that Toyota have introduced on their motors over the years, Certainly for a motor in it's standard guise there may be little that can be done to improve on the system, however the one thing about dealing with an old motor is that there is more likely to be room for improvement. In my case the first proposed modifications will include polishing and porting the intake and applying a piggyback management system and hopefully later adding a low pressure supercharger and gas flowing the head. Thankfully for the like of us in South Africa, there is no regular MOT testing and no easily enforceable emissions laws. So unless your vehicle is belching black smoke you are not going to get into trouble and you can modify the motor to your hearts content. Depending of course on your social conscience :-) I would love to see a dyno graph of a 1gfe motor with the ACIS valve in normal vs always open vs always closed operation, mainly to prove that it isn't just a fancy intake muffler :)

I am really keen to try this on my IS200- I am in South Africa, so our climate is a little warmer here, nevertheless I once the ecu sees what it thinks is a warm motor it will maintain normal fueling. Any verdict yet on the right resistor to use? Oh and do you connect in parallel with the sensor?

Hi folks, I recently bought a 2002 IS200 (1G-FE) , all has gone well until this morning when the beast just refused to start. The motor turns over, but won't fire. I suspect it may be fuel starvation, as despite cranking it a good few times, there is no smell of unburnt fuel. I checked the EFI relay and it seems to be kicking in when you turn the ignition on, but beyond that I am stumped. Does anyone have any wise suggestions or know of common faults that might be worth checking? Any help or suggestions would be appreciated.