| I always struggle to see why people say the TPS needs setting up, correct me if i am wrong the TPS in reality should only require setting up once unless the milli volt feedback signal drifts. ie on closed throttle (with throttle stops wound back) the input to the ECU will be about 150mv this should not alter if a new exhaust is fitted.
So what changes? I guess with improved exhaust gass flow through the new less restrictive exhaust this will alter the vacume between the two cyclinders and therefore the CO between them.
So what needs to be done I guess is check the vacume and balance this in theory should also balance the CO but this also should be checked Guessing now but the CO should be about 3% but it will run better set to between 5 - 6%.
When thats done the idle can be re-adjusted maybe slightly higher to 1200 - 1300rpm.
Not sure if I'm completely correct maybe somebody can add comment.
Regards
DaveO |