ITR.#1446

Car is a 96 civic with a jdm b16 with a obd1 p30 and conversion harness

My friend went to go drive one day and his car wouldnt start he finally got it started and he said it ran like crap and then died again down the road and would not start. I checked the car over and found out the timing belt was stretched and tensioner was not working properly, and also the ignition coil was bad. So i went out for a spin and vtec would not engage, after words he said that a week before this the check engine light was blinking and vtec wouldnt work and it would bog and would nt go over 5k rpms he said. It doesnt have a check engine light now and i cant figure out the problem, it runs now but doesnt have vtec tho? Anyone have any insight to help me?

Turbo_y8

hows the oil level.

Turbo_y8

and go have the comptuer read, it should have the trouble codes stored

ITR.#1446

yeah i was gonna try that, oil is fine, i put in a stock obd2a p28 for a sohc vtec and vtec worked but it has a trouble code for a ckf sensor malfunction because its an obd1 motor i assume, doesnt have it, i was using that ecu so if a light popped up i could scan it instead of blinking out the code

B16B_coupe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR.#1446 &raquo;</TD></TR><TR><TD CLASS="quote">yeah i was gonna try that, oil is fine, i put in a stock obd2a p28 for a sohc vtec and vtec worked but it has a trouble code for a ckf sensor malfunction because its an obd1 motor i assume, doesnt have it, i was using that ecu so if a light popped up i could scan it instead of blinking out the code</TD></TR></TABLE>

jdm motors dont have that sensor.. and if the timing belt stretched u might want to replace that and the tensioner...

did u test the vtec solenoid?
https://honda-tech.com/zerothread?id=830163

go there.. it should help u out man

Turbo_y8

drain the oil, replace filter and see if it clears

Could be water

happened to a buddy of mine with a b16. But vtec would engage and disenage and reengage and so forth. It sounded like rev limiter! It was actually funny. it would engage fine in first and as soon as you would go into 2nd and then it would start popping in and out!

Changed the oil and filter. Went away. Just a thought though.

ITR.#1446

yeah i replaced the tensioner and spring also, i have not checked the solenoid but it worked everytime when i running the obd2 sohc vtec p28 as soon i switched back to the obd1 p30 didnt work i even tried a obd1 gsr ecu and still didnt work. He is due for an oil change and he said started the problem one day when it was raining so its worth a shot but i never heard that before.

Turbo_y8

yea no one else did. it was pretty strange.

young noob

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR.#1446 &raquo;</TD></TR><TR><TD CLASS="quote">yeah i replaced the tensioner and spring also, i have not checked the solenoid but it worked everytime when i running the obd2 sohc vtec p28 as soon i switched back to the obd1 p30 didnt work i even tried a obd1 gsr ecu and still didnt work. He is due for an oil change and he said started the problem one day when it was raining so its worth a shot but i never heard that before.</TD></TR></TABLE>

im half asleep right now, and im on some pain pills, oxycodine ...surgery sux, but aren't p28's obd-1 ecu's, i dont recall of obd2 p28's.....

ITR.#1446

you are correct its a p2p obd2a ecu

flipstar760

JUST CHECK EVERTHING AND PUT THE 99-00 SI ECU IN....

miahmouse

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flipstar760 &raquo;</TD></TR><TR><TD CLASS="quote">JUST CHECK EVERTHING AND PUT THE 99-00 SI ECU IN.... </TD></TR></TABLE>

Unless he wants to get another conversion harness that wouldn't work 99-00 = obd2b... 96 = obd2a

A sensor or connector may have gotten wet... should throw a code though...

Is the oil pan dented? That can cause vtec to not engage then go into limp mode...

ITR.#1446

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

Unless he wants to get another conversion harness that wouldn't work 99-00 = obd2b... 96 = obd2a

A sensor or connector may have gotten wet... should throw a code though...

Is the oil pan dented? That can cause vtec to not engage then go into limp mode...</TD></TR></TABLE>

yeah its not throwing any codes..... im gonna check the oil pan but how would it being dented affect anything?

B16B_coupe

just change the oil.. and see what happens.. ok if vtec works with the single cam ecu.. something seems to be wrong with the jumper harness or ecu..

ITR.#1446

thats exactly what i was thinking too i have a friend coming over with his harness that works

young noob

tell us how it goes

miahmouse

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR.#1446 &raquo;</TD></TR><TR><TD CLASS="quote">yeah its not throwing any codes..... im gonna check the oil pan but how would it being dented affect anything?</TD></TR></TABLE>
If it's dented the oil pickup could be messed up or not have enough space to get a good flow of oil...

I'd also check the screen on the vtec solenoid... it can get clogged and cause similar issues...

young noob

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by miahmouse &raquo;</TD></TR><TR><TD CLASS="quote">
If it's dented the oil pickup could be messed up or not have enough space to get a good flow of oil...

I'd also check the screen on the vtec solenoid... it can get clogged and cause similar issues...</TD></TR></TABLE>

a few more reasons vtec is useless, im just kidding, just non-vtec is tempting for those who don't really care about gas mileage, and you would pick up on that low-end