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fjc
05-08-08, 12:45 AM
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
05-08-08, 11:42 AM
Has the ECU got a sticker on it with a part number?

Rich
05-08-08, 07:42 PM
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
05-08-08, 07:48 PM
Get the bosch part number off it

white2lSR
05-08-08, 08:18 PM
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
05-08-08, 08:25 PM
2. GQ- Is a Cally, Cat/Lambda xe ecu

white2lSR
05-08-08, 08:36 PM
so as ive got my lambda earthed out i should use the FQ one???

Adam
05-08-08, 08:42 PM
I dont know what the fx one is too tbh.

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

mayhem
05-08-08, 09:24 PM
FX is astra mk2.

white2lSR
05-08-08, 09:37 PM
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!!

fjc
05-08-08, 09:40 PM
the bosch number is 0 261 200 479
no eml as its in my old kadett c, and your lucky to get indicator lights, lol

Jack
05-08-08, 11:18 PM
the bosch number is 0 261 200 479
Cav GSi w/ cat according to the list on migweb (http://www.migweb.co.uk/forums/engines-transmission/165122-name-ecu%60s.html)

Jack
05-08-08, 11:21 PM
1. FX 0206200191 i have 2 of these, one is chipped
2. GQ 0261200475
1 = not sure, there's a 0 261 200 191 which is Cav GSi w/o cat
2 = Calibra 2.0 16v w/ cat

fjc
06-08-08, 12:57 AM
cheers, ill either try get another ecu or earth my lambda sensor out