Dr_Suess

i put a b16a2 in my 95 civic coupe

i used the stock d16z6 harness and p28 ecu

motor starts up...but idles very high and wont go past 5500 rpm

idles at 3500-4000 up and down

ived replaced the tps sensor.....checked all vacuums checked firen order..timing

nothing seems to work

now ive had some people tell me maybe its the gsr cams i have in it..which i plan to replace with the b16a2 stock cams tomorrow

i got the motor off a guy who was running turbo but his reason for gettin rid of the motor was tuneing was too much for him

a few ppl told me maybe he never could get the valve train settings right but i really dont see how that would mess with the idleing but i could b wrong

please repost with any info on what it could be

hondzuki

I had the same problem with my B16. You should go back over the vacume lines and make sure that they all go where they are supposed to. Does it constantly rev up and down without your foot on the gas? That is what mine did. To fix it I started the car and just messed aroud with the hose's till I finaly got it right. I did get a vacume diagram but even with it all hooked up like it was supposed to be it still did the same thing.

hatchish

adjust tps, adjust valves, check timing clean out Idle air control valve, go over lines go threw all the basics most likely u missed something

JDM_Ej

Try a different ECU. Your cams would have nothing to do with it idling so high, fluctuating and not revving above 5500.

Dr_Suess

yea i changed the tb and now it doesnt rev up and down and it sits at 2grand also changed the cams to stock b16 but it still taps out a 5 grand....what ecu could i try besides p28? ....p72? ive tried 2 p28s chipped and not chipped same problems

Dr_Suess

bump

Dr_Suess

bump bump need help

Dr_Suess

bump bump bump

Jay_Sensing

What does it do at 5000? Fall on it's face but continue to rev SLOWLY like it's dying from it or just plain rev limiter type action? Does it go Boxer mode and you can almost hear each cylinder firing? Exactly what happens man?

Dr_Suess

sounds like rev limiter hard to tell because its open header right now just did the swap and header doesnt meet the cat but it sounds like a rev limiter

Dr_Suess

a friend of mine heard it and says it sounds like somthing called "limp mode"

Dr_Suess

bump bump

stockredej1

may seem like a dumb question but do you have a map sensor hooked up?? when you changed the motor over you should have got one that mounts to the firewall. i unplugged mine once and the motor reved to about 5 grand and just help there. if not good luck man

Dr_Suess

mine sits on the throttle body always has...when i unplug it the car cuts off..so its working

Dr_Suess

bump bump bump

JDM_Ej

No check engine lights? Did you add and lengthen the wires to the stock harness correctly? Its definatly in limp mode, but now you gotta figure out why.

compwc18

it could be hitting a revlimiter because of a automatic ecu, it happend in one of my cars... but im sure you were right on the money with it... also, the revving up and down, I know you fixed it but most of the time its from the IAC valve... Sometimes the harness plug is friend and you have to hardwire it to the tower plugs, or you couldve had the plugs for the TPS and IACV switched because they are both identical... but good look on everything...