Air/fuel problem, seeking help!

[Keeper]

Hi I have what I can only assume is a air/fuel problem;

I have a 1996 GTS25t M-Spec -> one of the series II ones I have been told

When under moderate-heavy acceleration my car seams to shut the fuel off, making it surge and backfire. It seams to do it cold or warm, although a little more when warm, gets more and less noticable, the engine diagnostics mode picks up nothing!

I have tried cleaning my AFM, replaced my fuel filter, plugged in a CONSULT cable and got some data off it which I have absolutally no idea what to read, the AFM base doesn't really change from 90-110 but I think this might be normal, the CO2 sensor jumps from 20-100 very regularly even idling, but the car has no problems idling at all, just under acceleration, noticably under boost. The problem seams un, or barely noticable at all when you slowly build up the speed on the car, and in every other aspect seams to run fine.

First time I noticed the problem was when I took out my Pod+AFM+ECU+Carbon Canister to install some cabling for a bumper mounted camera I have, but I have since put them all back in, I did once try and start that car without the ecu to move it before I realised why it wouldn't turn over...

Please help with any ideas, I'm so lost.... :cuss:

[hanyou]

hey mate i have that same problem too but mine seems to happen in the cold. while driving whenever the car felt like it it would jus misfire and jab itself for like 2seconds till u let go of the accelerator or push harder. and after that car would drop revs to 0rpm & come back alive then stall at the next stop/slow down. happened about 4 times tonight. and yeah ive moved the stuff u moved except the ecu. car is a 96 series 2 also. id liek to find out wats wrong also

[hhong]

hey mate i have that same problem too but mine seems to happen in the cold. while driving whenever the car felt like it it would jus misfire and jab itself for like 2seconds till u let go of the accelerator or push harder. and after that car would drop revs to 0rpm & come back alive then stall at the next stop/slow down. happened about 4 times tonight. and yeah ive moved the stuff u moved except the ecu. car is a 96 series 2 also. id liek to find out wats wrong also

<{POST_SNAPBACK}>

[hhong]

I had soemthign simliar to that a while ago ,i cleaned outt he throttle body and the sensors using carby cleaner, give that a go and see how it goes,

[paulr33]

it might be easier to have someone local look at it, where are you located? have u tried speaking to any local tuners/mechanics ?