CEL 65 help!?

[Guest swiftbrad]

got CEL staying on so turned car off, connected black male and female etc and it comes up with code 65 Differential pressure sensor

Connect both black x2 and green x2 up and go for drive over 11kmph and cel light flashes consistently (no fault) Unplug black and green.

Sometimes after starting engine cel light comes on. Turn car off and restart, cel gone. CEL light doesnt come back for days but then randomly appears everynow and then.

I thort driving with black and green connected resets fault codes, assuming there isn't still a fault. I'm thinking there is no fault (cause cel flashes consistently) when in diag mode but cel light randomly appears again days later.

Doesnt this seem weird and whats the diff pressure sensor?

[Guest swiftbrad]

 Durty-Sanchez said:

At a quick glance at that diagram.. top left 'boost controller' is actually the differential pressure sensor

ANYone...

[Guest]

car details? i think i have a spare diff pressure sensor in the garage out of my BH

-smurff

[Carbon]

Ive had to replace the same sensor in the past. Its on the firewall on the passengers side (in a BE). Dont bother asking what a new genuine part is worth unless you have health insurance.

[Guest boostin]

It senses the pressure difference between the primary and secondary turbos.

You may have something as simple as a leaking vac/boost hose.

[mazdahard]

bump having same problem except CEL dont flash I just did a check and its there after I reset it last weekend.have a z/s controller but secondary is coming online and all the wires seem to be hooked up still

[Guest swiftbrad]

seems like it optimally controls the timing for switching from single turbo to twin. Wonder if its disagreeing with the zs controllerin some way?

How long you had your zs controller rsb leggy?

Thanks smurff but I got BG, cheers

[mazdahard]

Ive had mine in for almost a year no problems until recent though.the controller stil works fine still boosts fine too so I dunno could this be what causes my car to idle shit sometimes?