I just swaped in a b18b obd1 motor into my 92 Civic cx hatch. The motor runs fine and starts but it wont go over 1500 rpm. When i give it gas it just boggs out and dies. The CEL is on and i dont know what it can be.

I did a compression test and it was 170 for all 4, i also changed the wires to NGK and NGK iridium IX plugs, and put the wires in the right plugs in the dizzy. I thoght it was the ECU so i hooked up my friends P75 and its the same thing.

I have no idea what it could be, any help or suggestions will be great.

I only have the headers on and no exhaust, can this be the problem?

thanks

 

why don't you check what code you are throwing? that would be the first place i'd start.


Modified by EFRue57 at 2:40 AM 5/5/2008

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EFRue57 &raquo;</TD></TR><TR><TD CLASS="quote">why don't you check what code you are throwing? that would be the first place i'd start.


Modified by EFRue57 at 2:40 AM 5/5/2008</TD></TR></TABLE>

+1

There's a how-to at the top of this forum

 

Take your MAP sensor off on top of the throttle body and try running it with a seperate vacuum hose with a plastic T fitting between the FPR and the nipple on the middle of the intake manifold.

plastic vacuum hose T-fittings can be bought single or in packs for anywhere from 2-5$ at a auto parts store.

 

These are the codes its flashing.

6 ECT - water temperature sensor

21 VTEC spool solenoid valve


Im not sure why its flashing the vtec spool solenoid valve since its a b18b

Do you guys think that i have the wrong harness?

 

sorry that was wrong its actualy:

6 ECT - water temperature sensor

10 IAT - intake air temperature sensor

20 Electrical load detector

 

have to tried putting the exhaust on?

 

if you dont fix the ect sensor, the engine will never run right. probably one of the most important sensors for the ecu.

 

take the whole motor out and toss it! drop a k20r and your good to go! jk

 

so change out 6 and 10 and fix 20 later, it's not a big mystery changing out a couple small sensors, just be careful putting the new ones back on and don't overtighten them or you will break something.

 

See the thing it i dont know where they are, they might just not be pluged in since i did install the harness myself and had alot of problems with it.
Where can i find these sensors?

 

ECT is one of the two on the left side of the head, and IAT is white or black in color in the middle top of the intake manifold slightly to the right next to the FPR about.

 

Could this also be a problem since im runnig a stock D15 alternator?