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View Full Version : c20let not producing vacuum pressure



BenLET
11-03-12, 08:39 PM
can anyone help, im using a c20let corsa as my run around at the moment and had it put on the dyno saturday morning to see what it was producing. Now iv been told the ecu is fitted with eds stage 2 chips, the cars fitted with a large front mount, fse fuel reg, the turbo and downpipe look to be standard however the actuator looks to be aftermarket as it has an adjuster in the centre of it. the exhaust goes from the standard downpipe to what looks to be a 2 inch system (if that)

Car was put on the dyno and it was pointed out that there was no vacuum pressure and off boost the car was running rich then on boost became lean and the operator said that it was only boosting to 0.5 bar. as an end result the car made 223.5 bhp running in the state it was in

Can anyone shed some light on what could be the cause of this?