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[Miotnir]

Soo i have a 02 omega caravan, with a small handfull of problems, amongst those an ecu that dont agree with me, (y22xe ecu not z22xe) and with that im thinking of running a standalone ecu, and one of theoughts i had was changing from wasted spark system to a cop system im curious if somone has done it before and whats needed to make that work, potentialy what parts i shuld get for that

[TheBoy]

Probably not any benefit in going away from the wasted spark setup.

Why doesn't the ECU and you get along?  Just interested, and certainly not knocking the idea of replacing it, but it's quite a large task with lots of learning needed.

[Doctor Gollum]

I wonder if this car used to have a poorly installed LPG system that was subsequently equally badly uninstall 

[Miotnir]

Probably not any benefit in going away from the wasted spark setup.

Why doesn't the ECU and you get along?  Just interested, and certainly not knocking the idea of replacing it, but it's quite a large task with lots of learning needed.

so with me havin a z22xe but a ecu from a y22xe theres some small details in the ecu that aint how it shuld be so i get a good old stadard gm limp mode (doesnt limit power but limits rpm from 6.5k down to 4.5k, its als what causes my gearbox to not function as it shuld the ecu i have is a siemens simtec 71, but its noted as 5wk9 170(BJ, i need the one noted as 5wk9 158(DG) and that little change is in relation to how it reads, basicaly every sensor, mainly cam and crank sensor after my understanding, so it runs rich, limits rpm, is more... lazy... than it shuld be
i hope this helps in understanding what i mean, i can provide photos of what i mean if you wish

[Miotnir]

I wonder if this car used to have a poorly installed LPG system that was subsequently equally badly uninstall 

no LPG system installed here, just a clasic symptom of "previous owner syndrome"