peggy

iTrader: (11)

COULD SOMEONE PLEASE HELP.

I NEED TO LOCATE MY MAP SENSOR ON MY MY94 WRX.

I KNOW ITS ONE OF THE SENSORS ON THE DRIVERS SIDE INNER WING BUT WHICH ONE???

PLEASE HELP

PEGGY

Pavlo

see below

you got those brakes on yet?

Paul

peggy

iTrader: (11)

cheers Paul,

so if i want to install a boost cut defender, do i install it in the pipe between the atmospheric soloniod and the MAP sensor? or can i just install it on that line somewhere?

yes just fitted the brakes last weekend, and i will be testing tham at Goodwood tomorrow!!

Pavlo

best to install it at the ECU i think, which is where I put mine.

But I have now managed to remap the ECU, see Here for further info on this. Simply raising the boost limit and altering the boost map, but using a more or less standard fuel/ignition map is quite easy.

Also go Chris Palmers Web page to get some ecu wiring diagrams that show where the sensor wires can be found.

Paul

Paul

peggy

iTrader: (11)

sorry chap, i didnt explain myself properly.

i have a Dawes mechanical boost cut defender that bleeds off from the map line, so i guess i will have to do that in the line before the MAP.

Pavlo

hold up there a minute!

Dawes is a different kettle of fish, it's not a simple bleed valve as such. It completely replaces the boost control provided by the ecu.

Dawes is basically fitted in-line, in a hose from the hose barb on the turbo compressor housing (just before the intercooler hose), to the wastegate actuator.

You can leave the boost solenoid in place, as the ecu will complain if it's missing, or you can replace with 150ohm resistor so the ecu still thinks it's there.

As for a fuel cut defender, people generally fit them to prevent a fuel cut if the boost exceedes a pre determined level, about 15.8psi on your WRX I should think. So if you use a dawes, and you want to run say 16psi boost, ecu isn't going to be too pleased.

Many people just set the Dawes to 1 bar (14.5psi) and leave the fuel cut as is.

Paul

dhorwich

pavlo,

see here they do a fuel cut rasier too...

http://www.performanceexhausts.net/Cutout.html

Dan

john banks

It abolishes fuel cut as it vents using a relief valve. Arguably a better solution is to bleed off or restrict the pressure feed to the sensor since you then still have a fuel cut. A bleed will compress the signal around atmospheric - both vacuum and boost. I haven't found any effect on fuelling or timing from altering the MAP values. There are electronic solutions which can be more precise, but that precision is probably superfluous unless you are retaining closed loop control but shifting it.

Pavlo

now I get it, the dawes mechanical fuel cut rasier.......