I have a h22a prelude that I use for dirt racing.,put motor and training in new car got running and no v tech used old wiring harness everything is the same as it was in last car and it worked fine..put a p28 ecu in it which deleted the crank sensor,speed sensor,egr valve and o2 sensor still no v tech changed sylenoid oil press sensor temp sensor car revs out to 8000 rpm I have a light hooked to sylenoid and it shows no v tech also it spudders at half way point changed oil and filter it has 80 plus psi oil press when I hit the sylenoid with a hot wire it blubbers I changed dizzy nothing put old one back in will that effect v tech..runs great I believe I don't have map sensor hooked up ...please help me with any info u may have...thanks

 

1- its V-tec, not V-tec"h".

2- check you speed sensor, v-tec uses it so it doesnt engage at too low of mph*.

 

cudbe a clogged cat or dented oil pan

 

deleted the speed sensor will check oil pan I have straight pipe on it so no cat..thanks for the replies...

 

What do you mean you deleted the crank sensor and speed sensor ?

 

p-28 computer I had programed did away with the speed sensor crank sensor egr valve and o2 sensor..