91 EX with pt3 ECU??????

[bowzil]

Hi guys,

I just changed my 91 ECU with p12 from prelude S. Then I realized that the one installed on my car was a pt3 ECU.

If I am not mistaken EX model have pt6 ECU and DX, LX model have pt3 ECU, right? But why mine comes with a pt3 ECU?

After I changed my ECU with the p12, the car gain more power IMO. The most significant feeling is in the lower rpm (800~5000rpm).

Just For your information my car has a stock f22a4 engine and an EX model.

[cp[mike]]

PT6 went with the F22A6, which was in the 92-93 EX's/SE's.

any f22a1/f22a4 had a PT3.

i THINK the only difference is that i think the dx/lx PT3 had a 118mph limiter (due to T-rated? tires on them stock), while the PT3 from an EX A4 may not have (stock were H? rated). but its still a PT3, which doesnt have IAB support or the better fuel maps.

[bowzil]

PT6 went with the F22A6, which was in the 92-93 EX's/SE's.

any f22a1/f22a4 had a PT3.

i THINK the only difference is that i think the dx/lx PT3 had a 118mph limiter (due to T-rated? tires on them stock), while the PT3 from an EX A4 may not have (stock were H? rated). but its still a PT3, which doesnt have IAB support or the better fuel maps.

Thanks man, I really appreciate your help and info.

[da9b16]

The 91 se had a pt6 ecu too.... not to be a punk

[cp[mike]]

The 91 se had a pt6 ecu too.... not to be a punk

true, forgot that one. that was the first cb that came with the f22a6.

[da9b16]

yeah I miss mine alot.... wish I would have kept it.... REAL nice when I got rid of it but traded it for a 93 gs-r aztec green pearl b17 -FTW!!