constant vtec
03-17-2005, 06:57 AM
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constant vtec
Frankenstein motor in a 99 hx civic has a constant output of 14.0 volts to vtec plus hits a rev limitor at 6000. it does not redline just acts as if somethings holding it back.PLEASE HeLp. Thanks 
03-17-2005, 07:00 AM
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Re: constant vtec (jessej)
problem with the ecu?? try out a friends with the same vehicle in yours and see if it helps - - if it does, then u know thats the problem...
u should get that fixed though - - its gonna suck for gas mileage and wear on your engine...
u should get that fixed though - - its gonna suck for gas mileage and wear on your engine...
03-17-2005, 07:50 AM
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which block if your running a b20 vtec best to run a gsr ecu - your fuel map on the 99/00 si ecu is kind of far off for a b20 ! i ran the si ecu on myne same prob- ran gsr ecu- ran fine!
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03-17-2005, 08:34 AM
#9
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Re: (jessej)
The VSS sensor is in a diff place on the p28 and p72. Also, with the p28 you can ground your vtec oil pressure switch to the motor, but the p72 looks for it at A26 i think. Search for the pinouts and compare. I bet that's your problem.
03-17-2005, 08:38 AM
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Re: (93delslo)
The vss is not hooked up b/c he used a 91 ls tranny with cable clutch and that sensor is mechanical compared to an electrical one with th si 
03-17-2005, 08:42 AM
#11
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Re: (jessej)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jessej »</TD></TR><TR><TD CLASS="quote">The vss is not hooked up b/c he used a 91 ls tranny with cable clutch and that sensor is mechanical compared to an electrical one with th si </TD></TR></TABLE>
You might want to consider converting to OBD0. Maybe someone else has some ideas, I'm out.
</TD></TR></TABLE>You might want to consider converting to OBD0. Maybe someone else has some ideas, I'm out.
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