I swapped a 96 accord ex vtec engine into a 90 accord. I used my wiring harness from my 90 engine and everything fit fine. I am using my ecu from my 90 accord and I am also using my distributor from my 90 engine. When i start the engine it runs fine, but then when you are driving there is a knocking noise, coming from the engine and my RPM's cut off a 4500. When my car is idle there is NO knocking noise, the noise is only when i am driving. What is wrong? What is the knocking noise that i am hearing? Where is it coming from? Why are my RPM's cutting off at 4500? Please someone HELP ME!

 

is your 96 f22b1 vtec and OBD1 or OBD2.

if i am not mistaken, i think it may be an OBD2. i bought a 94 f22b1 and i know it is an OBD1.

2-- i think some of your problems may stem from the fact that u r running a vtec motor (which may be OBD2) off an ECU that is OBD1 and non-vtec.

3-- the RPM deal could be because your motor wants to engage into vtec, but it does not have the capability to do so...or do u have something to send a 12 volt signal to the vtec solenoid?..like a shiftlight, window switch, or something.

just my 2 cents...i could be wrong...if i am, can some1 fill us in

thanks

 

yeah its OBD2. I have a 96 f22b1 and its OBD2.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by repherence1 &raquo;</TD></TR><TR><TD CLASS="quote">is your 96 f22b1 vtec and OBD1 or OBD2.

if i am not mistaken, i think it may be an OBD2. i bought a 94 f22b1 and i know it is an OBD1.

2-- i think some of your problems may stem from the fact that u r running a vtec motor (which may be OBD2) off an ECU that is OBD1 and non-vtec.

3-- the RPM deal could be because your motor wants to engage into vtec, but it does not have the capability to do so...or do u have something to send a 12 volt signal to the vtec solenoid?..like a shiftlight, window switch, or something.

just my 2 cents...i could be wrong...if i am, can some1 fill us in

thanks</TD></TR></TABLE>

Sounds about right. You need to wire for vtec and change over to obd2 and if you haven't you need to change your ecu (someone correct me if I am wrong)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VRDrvr &raquo;</TD></TR><TR><TD CLASS="quote">

You need to wire for vtec and change over to obd2 and if you haven't you need to change your ecu (someone correct me if I am wrong) </TD></TR></TABLE>

that would be teh wise move!