Greddy FMU(blue box) on 99 GSR. Can I use obd2-obd1 harness and chipped P28?
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Greddy FMU(blue box) on 99 GSR. Can I use obd2-obd1 harness and chipped P28?
As title says i have a Greddy blue box on my 99 GSR. Wanting to convert to obd1 and chipped P28. Will this work together?? Any help would be great. Thanks. 
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Re: Greddy FMU(blue box) on 99 GSR. Can I use obd2-obd1 harness and chipped P28? (jdmtegra666)
I'll tell you right now that it doesn't work. You're going to get a injector failure CEL when the blue box is tapped in. Tried it on my car not too long ago.
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Re: Greddy FMU(blue box) on 99 GSR. Can I use obd2-obd1 harness and chipped P28? (iiilgsrlll)
The p28 can't control the secondary butterflies if i remember correctly, so you really need to get a p72 and chip that, it should work if you take the blue box out
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