Hi I have just bought a 1989 SAAB 9000 Carlsson 2 litre, with Bosch LH 2.2 injection. I have a later SAAB (1992) 2.3 engine I am fitting, as the 2.3 uses Bosh LH 2.4 and has a lambda and TCS I cant use the original 2.3 ECU without a wiring harness change ( the TCS system is crap, not working and I don't want it!!! )

Question is how do I upgrade the original ECU from 2 litre to 2.3???

Do Volvo use LH 2.2 on their 2.3 T engines?

Can I just up the fuel pressure by 15% ?

Can I fit bigger injectors?

Any help appreciated

Thanks Mechnowhiz