s2 ecu fault please help

[superior]

Hi all ,
I have a 93 k green avant {and love it} quite a few mods brakes wheels engine a full list will follow i have owned my flying machine for 14mths now without missing a beat .
I know this is a big ask but i need help.

I have recently fitted a new turbo , wastegate , exhaust man , injectors and chips i have also fitted a haltek 3 bar sensor . I have had some problems where the engine is not running properly and under boost it feels like it is holding back/misfiring this happens mainly when you are changing gear under hard exceleration and go into the next gear and release the clutch when the boost comes in it splutters . we changed the the coils no change, maf no change n75 no change new plugs no change then we put my mates ecu in from a rs2 worked a treat @390bhp.
we then put my chips in his ecu and the car was a whole different animal @420bhp . so we then knew we had a ecu problem .
so we put his map sensor{standard 3 bar bosh} in my ecu and we still had the problem . so we thought it was the ecu at fault we used a fresh standard ecu and socketed it and put my haltek 3bar sensor in it and also my chips , we still had the same problem. Any suggestions . as i am loosing the plot , anyone been here before ?
Cheers Ben

[driftin jo]

Hi all ,
I have a 93 k green avant {and love it} quite a few mods brakes wheels engine a full list will follow i have owned my flying machine for 14mths now without missing a beat .
I know this is a big ask but i need help.

I have recently fitted a new turbo , wastegate , exhaust man , injectors and chips i have also fitted a haltek 3 bar sensor . I have had some problems where the engine is not running properly and under boost it feels like it is holding back/misfiring this happens mainly when you are changing gear under hard exceleration and go into the next gear and release the clutch when the boost comes in it splutters . we changed the the coils no change, maf no change n75 no change new plugs no change then we put my mates ecu in from a rs2 worked a treat @390bhp.
we then put my chips in his ecu and the car was a whole different animal @420bhp . so we then knew we had a ecu problem .
so we put his map sensor{standard 3 bar bosh} in my ecu and we still had the problem . so we thought it was the ecu at fault we used a fresh standard ecu and socketed it and put my haltek 3bar sensor in it and also my chips , we still had the same problem. Any suggestions . as i am loosing the plot , anyone been here before ?
Cheers Ben

It sounds like the chips you have are made for an RS2 ECU, If I remember correctly there is other things different in the RS2 ECU other than just the MAP sensor. If so this is your problem.

[superior]

Cheers Jo does anyone know the diffrence between aby ecu and rs2 .

[fish]

there is some kind of resistor soldered in the RS2 ecu aswell. Dont really know what it does though.

[S2central.net]

@superior - guessing you must be Ben... I sent you an email back. I'll need hands-on that ECU to check it over - if its running RS2 based chipset then there is a couple of things on the ECU that it needs to stay happy.