MARTYN WRX94

I removed the carpets to rewire my mass air flow sensor (brorken harness) and discovered that i have a mines ecu are they any good?? Car is a 93 wrx

millwrx

iTrader: (1)

got one on my 94 plate import,alot of people call them the kiss of death due to them running alot of advance,have had mine on my car since i got it 5 years ago,not had any probs,mines got sti bottom end,blitz idb3 boost controller etc ,does seen to run a little rich on the afr gauge and i rarely see over 8 on my apexi s-afc,i am in the process of buying a power fc,

Scott.T@PolarPerformance

several people have had engines let go on the Mines ECU.
Out of all the Jap stuff i.e Prova, ZeroSport, Jun etc... I think I have heard of more issues with Mines & ZeroSport. With Prova being slightly better.

harry007

I have a prova chip currently, whats it good for, is there standard spec for it boost etc? and are you able to reprogamme it or edit, or will it have to be removed for one of your chips? Is there any other information you can give me about prova? You also said prova is a bit better, why is that?

and breathe... lol

Thanks for any replys in advance.

Scott.T@PolarPerformance

the prova map I have seen is set to 16.5psi with quite aggressive ignition timing.
It was quite well mapped compared to some of the others if a little aggressive for UK fuel.

Your chip will probably be an adaptor soldered into the ECU, so not removable unless you know anyone into electronics that feels confident enough to desolder it (I know I wouldn't).

harry007

How much is 16.5psi in bar? 1.1? I only ask because I'm only running a tdo4. The car came like that from Japan.

Scott.T@PolarPerformance

It may be running a different map then, as the one I saw was in a 95WRX Saloon.

16.5psi is 1.137bar