h22a vtec problem...

[nightrider93ex]

alright guys i got another problem for you all.......vtec is engaging but it boggs....as soon as vtec kicks in itll bogg...sometimes it wont and itll run strong but then 10 minutes later if i hit vtec again to test it itll bogg. EXAMPLE.....i was driving in second it bogged from 5,500rpm to 6,200rpm and the rest stayed on non bogging vtec....as soon as i shift it into third no vtec at all.....wtf...im pissed off ....any suggestions...i checked the oil pressure by taking off the oil cap and there is....theres oil aswell..

[rickyduckworth]

what ecu/program

[h22sparkle]

Yeah any check engine lights ? is your oil at level before you drive,do you have enough coolant,do you wait for the car to warm up before you drive off? If you got a p13 it had better be stock and not some shit from ebay or chipped whatsoever to really diagnose the problem.

[nightrider93ex]

stock p13 ecu.....it wa working fine before....no check engine(thats if i think the light is working)......of course i let it warm up.

[d112crzy]

i have a huntch its the knock sensor.

[h22sparkle]

What kinda grade gas do you use? whens the last time youve gven it a tuneup?

[nightrider93ex]

93 octane.....i changed the oil and filter....spark plugs(ngk-r v-power)....thats about it

[v4lu3s]

unlikely to be knock sensor since it is disabled before vtec engages due to the loud noises of vtec activation setting it off.

can you hear vtec activating and just not power or is vtec not activating at all?

[NAiL05]

i have a huntch its the knock sensor.

I wouldnt doubt that Id still give it a check its not hard. So you say it feels fine before engagement but when it engages it bogs. Check oil levels too.

[nightrider93ex]

yea it engages and boggs....you can hear the vtec engage and disengage quickly....oil levels are fine.....right under the second dot on the dipstick....

[h22sparkle]

Check your connections and make sure your timing is on point

[pocb7]

I had this problem before and it turn out to be the knock sensor. Anyway, have you jump the service connector and come up with any code at all???

[d112crzy]

joser ftw!

[EuroSpec]

my stock p13 ecu acted goofy as shit for a while... try and get a p28 chipped for you. standard fuelmap's ect. should run you around 180 it's also better ground's for tuning later on.

[maroonaccord2.2]

joser ftw!

Ahaha, ya.... after all any "knock" (i.e. timing correctable issues) would require that the sensor is working properly. Time to jump that service connector for sure.