Problems with gsr swap HELP!
Thread Starter
Joined: Feb 2007
Posts: 20
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From: charlottesville, va, usa
Problems with gsr swap HELP!
Ok i recently bought and swapped a 99obd2 gsr motor and put it in my 93 civic using and obd1 gsr harness and obd1 STOCK ecu.
Here are the problems I am having.
1. I do not know how to hook up the IAB box (keep in mind I have a aftermarket fpr on the fuel rail).
2. I have a plug near both of the strut towers that dont connect to anyhting. One on th drivers side is green and is closer to the IM than the strut tower but you get the point.
3. Now for some reason on my bone stock obd1 gsr ecu vtec is kicking in around 42-4500 and i feel like i have no power compared to my obd1 gsr motor i had previously and this new motor has headwork so it shoudl feel as good if not better.
4. Other than that the car is driving excellent....oh and i have a 94gsr tranny on the new 99 motor doubt that matters though..
5.I have a tuned ecu thats tuned for a obd1 gsr boosted on 9lbs...can i use that ecu on my stock motor if not why? what problems will it cause other than maxing out the injectors?
thanks!
Here are the problems I am having.
1. I do not know how to hook up the IAB box (keep in mind I have a aftermarket fpr on the fuel rail).
2. I have a plug near both of the strut towers that dont connect to anyhting. One on th drivers side is green and is closer to the IM than the strut tower but you get the point.
3. Now for some reason on my bone stock obd1 gsr ecu vtec is kicking in around 42-4500 and i feel like i have no power compared to my obd1 gsr motor i had previously and this new motor has headwork so it shoudl feel as good if not better.
4. Other than that the car is driving excellent....oh and i have a 94gsr tranny on the new 99 motor doubt that matters though..
5.I have a tuned ecu thats tuned for a obd1 gsr boosted on 9lbs...can i use that ecu on my stock motor if not why? what problems will it cause other than maxing out the injectors?
thanks!
Honda-Tech Member
Joined: Apr 2007
Posts: 2,528
Likes: 1
From: back woods, va, usa
what up im right on the other side of the moutain. your fuel and timing maps are gonna be way different for n/a.im not familar with gsr's is the iab box for the secondary butterfies.
Honda-Tech Member
Joined: Jan 2003
Posts: 8,132
Likes: 5
Re: (hndata9600)
Got the IAB control valve too?
Here's a vacuum line diagram.
It doesn't really matter what FPR you have. Just need to supply that canister (#7) with vacuum. Use a check valve (#4). The ECU will control the IAB solenoid (#6) to open & close them when they're needed.
Normally a boosted engine won't use the 2-stage intake manifold, so your turbo-programmed ECU is probably not right for this.
If your secondaries are open all the time, that would explain the lack of power at low rpm.
Here's a vacuum line diagram.
It doesn't really matter what FPR you have. Just need to supply that canister (#7) with vacuum. Use a check valve (#4). The ECU will control the IAB solenoid (#6) to open & close them when they're needed.
Normally a boosted engine won't use the 2-stage intake manifold, so your turbo-programmed ECU is probably not right for this.
If your secondaries are open all the time, that would explain the lack of power at low rpm.
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