ecu question

[fjc]

yello, ive got a GX ecu can someone tell me if this is lamda or pre-lamda ??
problem is ive got a c20 xe running no lamda and im using a GX ecu, its got a misfire to it when at high revs its like it has low fuel pressure and back fires, ive checked everything else and this is the only thing i think it can be ..........

cheers

[Jack]

Has the ECU got a sticker on it with a part number?

[Rich]

You can earth out (i think its pin 22?) and it will ignore the lambda, would need setting up properly with the mixture screw on the air flow meter though.

Have you got the eml connected up?

[Adam]

Get the bosch part number off it

[white2lSR]

Sorry to thread hi-jack.

i have these 3 and they all seem fine on the car. the loom i have has a clip to earth the lambda probe out.
which one of these should i be using????? and whats the difference in them??

1. FX 0206200191 i have 2 of these, one is chipped
2. GQ 0261200475

[Adam]

2. GQ- Is a Cally, Cat/Lambda xe ecu

[white2lSR]

so as ive got my lambda earthed out i should use the FQ one???

[Adam]

I dont know what the fx one is too tbh.

If its running fine with no ecu lamp on, its all good

[mayhem]

FX is astra mk2.

[white2lSR]

so providing you have the lambda sensor earthed out you could use either.

it seems to run fine with either but ive only driven up and down in 1st and 2nd so it could be different on the road!!