I'm just in the middle of a turbo change & stage 3 so I've just changed the turbo, intercooler & map sensor (3 bar) and run the car up to temp to check for water leaks. I haven't fitted the injectors yet so the car is on the NMS gunship map at the moment.

I have an erratic idle so I wondered if the different MAP sensor could be sending it confusing signals? Obviously I will not be driving the car until the injectors & chip are changed

Thanks

 

Yes it will.

Mark

 

Thought as much. Thanks for confirming it Mark I can carry on now

 

2bar map sensor reads -1 to +1 as 0v - 5v
3bar map sensor reads -1 to +2 as 0v - 5v

so each dige a different signal at different pressures, and the ECU can't tell the difference

 

..yeh deffo.....i had a problem after my re-build......just wouldn't run propperly

 

Chip and injectors should be in early next week so fingers crossed it'll run properly again. I was a little worried because I've changed quite a few things and just wanted to check for water leaks abd refil the system, maybe I should have waited until it was all on

 

why not just put your old map sensor back on then the car will run fine

 

Because I'm fitting the injectors and chip next week, this is my 2nd car and doesn't get driven The only reason I started it today was to check for water leaks and to bleed the system, it was only run on idle so I knew it wasn't a problem.

 

please, dont drive it with the wrong map sensor on, it's pointless, just put the 2bar back on, its not like it's hard to swap... lol