Just for peoples info, I hooked up a light from pin 25 off the ECU which is the wire that controls the boost solenoids. It is 12v positive when in safety boost, and the ECu earths pin 25 when in normal boost. Some people mentioned that their lights never went out, but mine works fine. The ecu shuts the solenoids at idle, and then opens at just off idle (works off the TPS sensor). The car will be in safety boost mode untill it warms up to about 1/3 of the way up the stock temp gauge, I dont know what the actual temp is, 60 seomthing degrees C. Running 10psi boost on Optimax, I have never seen it flicker once warmed up and off idle. Pretty cold whether here at the moment, and will up boost soon. I also connected my a/f meter to one of the oxy sensors, as I thought I would see overly rich mixtures all the time whilst cruising around town, as I have really bad fuel economy and was thinking about trimming this a bit with a new chip. Stock chip currently installed. It actually holds stoich (14.7:1) most of the time, and goes rich every time you apply the accelerator (replicating the accerlator pump shot of a carb). Even cruising along the highway at say 2psi of boost, it still tries to hold stoich, its not untill you load the engine up more that it starts to richen, and will go to less than 11.8:1 (where my meter maxes out) at full boost. From memory, the stock chip will go to about 11:1 under full boost and higher rpm. What I am getting at is besides leaning out the a/f ratios under full load, there does not appear to be much fuel available to take out under light throttle and cruise conditions. Even if I set the a/f ratios in the main fuel map to a bit leaner, the closed loop will just bring it back to stoich, so there will not be any benefit. Seems like you need to change the target a/f ratio of the closed loop area to more like 15:1 or higher. Ben
just in relation to the A/F meter... does it only hook up to one O2 sensor? Just outa interest cause I'm running dual pods, and was considering an A/F meter, maybe i need two meters
