i have an 87tii, with some issues and i need to swap out ecu's to see if that is the problem. the spare ecu is a gforce 88tii ecu. i'm wondering if the swap will create a scenario to blow up my engine. the issue involves some low rpm hesitation that i think is a fuel issue, either pressure or dirty injectors, which would be rare cause the injectors were cleaned 15k miles ago.



btw - the gforce ecu removes fuel cut and retards timing above 8.5 psi. i'm pretty sure that's all it does, so i will have to temp disconnect the fcd on my car now if i can use it

yeah ecu's swap out no problem

Good. The difference in the high and low impedence for the injectors makes no difference?

that would be on a 89 when they changed em.

[quote name='75 Repu' date='Jun 24 2005, 11:09 AM']that would be on a 89 when they changed em.


[/quote]



no, it wouldn't, they changed them partway through the S4's.

j9fd3s was right.



The injectors are different, the ECUs are the same. It's the implementation of the resistor pack or not. So the ECU needs the ~13ohms in both cases.



Cheers

Hmm, I will try this after I check my primary injectors then.