Hondata
Ok. You need an ECU that has the features to run that engine, which in your case (if it's a stock GSR) would be a P72. This is the 92-95 GSR ECU, so it can properly control the IAB (secondary intake butterflies on the GSR manifold) and has a knock sensor. You already have a OBD2-ODB1 adapter harness, so that part is done.
You will need to have the ECU chipped. This is usually around $50, and can be done by a local shop or someone like me (if I was still local) or sometimes by whoever sells you the Hondata system. Chipping allows the ECU to operate from non-stock programs, which is what tuning software generates. There are also some other minor things which may need to be done to the ECU depending on which Hondata product you use.
The Hondata system is a little box/board/etc that plugs into/onto the ECU and allows the (chipped) ECU to use the Hondata software. Some of the systems add more features, like datalogging, user-settable launch control, etc., so check out Hondata's site for more info on the specifics of each system.
I'm some salesman for Hondata or anything, and there are other options out there also which all have their pros and cons. I'm just answering your Hondata related question.
You will need to have the ECU chipped. This is usually around $50, and can be done by a local shop or someone like me (if I was still local) or sometimes by whoever sells you the Hondata system. Chipping allows the ECU to operate from non-stock programs, which is what tuning software generates. There are also some other minor things which may need to be done to the ECU depending on which Hondata product you use.
The Hondata system is a little box/board/etc that plugs into/onto the ECU and allows the (chipped) ECU to use the Hondata software. Some of the systems add more features, like datalogging, user-settable launch control, etc., so check out Hondata's site for more info on the specifics of each system.
I'm some salesman for Hondata or anything, and there are other options out there also which all have their pros and cons. I'm just answering your Hondata related question.
Ok, in that case you can use either a P28 if you don't care about a knock sensor, or a P30 if you do. They're actually the same base hardware but the P28 is missing the extra circuit board inside with the knock sensor stuff on it. Anyway, you could also use a P72 and run P28/P30 code on it, but P72s aren't as easy to come by as P28s.
I'd say go with a P28 and don't worry about the knock sensor. If you have a good tune it won't matter anyway, and every 92-95 Civic EX came with a P28 in it so there are plenty of them out there. You should be able to find one for around $75, chipping will cost around $50 and can be done at the same time as Hondata installation. If you can find an auto tranny P28 (which is usually cheaper; I've paid $35-$50 for them) it can be converted to manual tranny useage for really cheap during the chipping process.
I'd say go with a P28 and don't worry about the knock sensor. If you have a good tune it won't matter anyway, and every 92-95 Civic EX came with a P28 in it so there are plenty of them out there. You should be able to find one for around $75, chipping will cost around $50 and can be done at the same time as Hondata installation. If you can find an auto tranny P28 (which is usually cheaper; I've paid $35-$50 for them) it can be converted to manual tranny useage for really cheap during the chipping process.
Last edited by Fabrik8; Aug 19, 2008 at 02:09 PM.
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