hey all, I got a 97 gsr and I connected my obd1 ecu, and right when it reaches about 4800-5000 rpms, it sputters like crazy. Is there more involved to do an obd1 conversion?

 

dont know much about the conversion becuase I already have a 95 gsr with obd1 Why do OBDII people wanna convert it into obd1 unless you plan on chipping it. But if your mods are only basic bolt ons why even convert ecu's? I just dont get why people hate obd2 so much...

 

does your rpm bounce around that rpm range and fall flat to zero when tryin to rev past it?

 

I am boosting so yes, I need to chip it but I just decided to test it out. No, it doesnt fall flat to zero, just sputters and barely goes up. I don't want to try it again in case it ***** something up ...

 

my tach drops to 0 when i hit vtec but i just got another tack that conects strait to the distributor and that worked prety well ... that one didnt drop. i also have the obd1 conversion on my car

 

i c...but right at 4800-5000 rpms it sputters like crazy..i dont know y...

 

you connected an OBD1 ecu directly into your OBD2 wiring harness or you're using a jumper to connect it? hopefully you know this, but you can't just plug an OBD1 ECu into an OBD2 car without a jumper

http://www.jhpusa.com/catalog/...d=493


Modified by SeminoleDC4 at 12:12 AM 6/1/2004

 

i am using an obd1 ecu harness ...converts from obd2 to obd1

 

Did you try a different OBDI ecu? Sounds like a VTEC engagment problem. Are you running GSR or ITR intake man? What ECU are you using? I'd fault the ECU from where I'm sitting.

 

also, if the ECU isn't from a GSR and you're using the stock intake manifold, your secondary butterflies won't open b/c the ECU isn't programmed to do so

 

no, haven't tried a diff obd1 ecu... gsr intake manifold, using a p72 stock obd1 gsr ecu.