egcoupespecial

I am hopeing you guys can help me I have just done a b18c4 swap on my eg coupe which had a d15b7 non vtec I used the stock wiring loom as it was obd1 and I'm running a obd1 p30 ecu I have wired in the vtec selonid and oil pressure which has got rid of the cel codes but still no vtec. Wrecking my head!! The car is showing cel codes 3 and 41. Can u help ms Plz want vtec! Cheers

numberone

iTrader: (2)

Knock sensor? Is your O2 good?

egcoupespecial

there is no knock sensor and its throwing up cel sodes 3 and 41 now any ideas?

was thinkin that the map sensor wires are wrong going into the ecu?

BryanM.

iTrader: (1)

Fix the CEL codes and go from there. It's only logical to do so. And if it's in limp mode = no VTEC.
Not sure how well a B18 will run using a P30.
Also, pretty sure all B18C VTEC engines have knock sensors.

Here is a site with an OBD1 ECU wiring pin-out if you want to check the wiring:

>>> http://www.ff-squad.com/technet/wiring.obd1.htm <<<

egcoupespecial

ok changed th02 so thats fixed hard wired the map sensor straight to the ecu cleaped the code only done this temp by strippin a small piece and connecting the wires then soldered it on now the cel code 3 is back and all the wires are in the correct location wtf ????? i honestly dont know what else to try. the car starts and idles at 1100 and no vtec ?? if i unplug the coolant temp sensor the car idles normal but no vtec i dont know what to do

also tried a diff map sensor same thing happened!!!!!!!!!!!!!