i just swapped a b18a1 into my crx and have a few questions for you guys. when i press the gas pedal theres only a very small amount of space before the pedals on the floor, like say an inch and a half. could i adjust the cable a bit to give it more slack? when idling warmish it seems to be around 500-1000. sometimes its 500 and sometimes it jumps up to 1000 and everything inside the car vibrates. when its wide open it feels like it pulls real good and then it just dies out like when you let off the gas but its to the floor, and then comes back up again like theres power. i can feel it misfiring when im driving around town at normal speeds (35-40) but around 60 ish 70 i don't feel any misfiring at all. i'm thinking the misfiring is because of foul spark plugs because i havent changed them at all yet. now the power loss i'm experiencing could that be caused if timing was off? i noticed that the hose going from the IM to the PCV valve is being sucked in half way down the hose, i'm running a b20 VC so could i move the pcv from under the intake manifold to the vc w/ a new pcv valve and run it that way? i also have blue smoke coming out so i'm thinking valve seals or rings are going or bad so i'm going to do a compression test to see if theres any problems inside. if anyone has any info on these it'd be much appreciated

 

oh and i forgot to say, i'm running a CEL also, either code 1 or 10 cant really tell lol it just blinks once

 

number 1 is HO2S HEATED OXYGEN SENSOR

10 is IAT Intake air temp


None of these would make your car experience what your saying..


Loss of power will be your Crank to cam timing if you messed with it.

Tell us more info as far as, was it running strong before.did you replace t belt,did you install something new, etc ......

 

i know the codes wouldn't make it run this way but it just popped up today so i thought i'd throw it in.

i didn't mess with any timing, i don't even know if it was timed right before i bought it. ****, i really don't know how the motor ran before i bought it either. i didn't replace t belt, i just threw the motor into the car. i replaced mounts, linkage, knuckles and just things to make the swap to work. brand new fluids and thats about it.

 

Damn so you bought a mistery motor?

Id start by checking Crank to Cam timing. if it checks out ok then id move to fuel and spark (fuel pressure test) and check spark plugs. etc...

 

yeah pretty much, dumb move on my part but i got the whole front end cheap

but thanks i'll give that a try.

 

i just changed the spark plugs and the misfires are gone now, runs a little better but i havent been able to hop on the highway to see if there any power loss now.

but, does anyone know any answers to the other questions i had?

could i run the pcv valve out of the b20 VC instead of under the IM?

 

hard to understand what you are saying is happening with the hose going to the PCV.
Sounds like the hose is collapsing when vacuum is pulling on it.
Maybe the PCV is in backwards? Or needs to be replaced?
This MIGHT explain the smoking issue.

Reset your ECU.
It might be that the engine misfiring was sending unburnt fuel into the exhaust and was triggering the O2 code.

 

that was my guess on the o2 sensor, because it only came up after it started misfiring, then the cel came on with it.

and with the pcv hose, from where it connect to the IM to a quarter or half way down the hose is collapsed just like you said as if there vacuum pulling on it, but its only half the hose. the pcv is brand new also from autozone. i just picked up a new one, havent put it in yet but that's why i was wondering if i could run the pcv like the b20 and see if that frees up the hose. idk how the pcv could be in backwards since theres the big end down and small end connecting to the hose.

do you think it would be safe/alright to run the pcv out of the vc instead? would i have issues with that?

 

I would just install the PCV in stock location and see what it does.
Very possible that the old one is clogged.
My personal way to go about things is to make it run stock before modifying, so I wouldn't try the relocation until I got it working properly first.

 

Say what you will, but almost sounds like the TPS wires are flipped. Check the voltage of the middle wire with the key forward and tell us what it is.

 

ya know neva, i thought of that too. but, this is the same harness i had on my d16 and when i swapped to mpfi back then it ran right and i never touched the tps wires again. but tomorrow i'll check the voltage and swap out the pcv and see if that helps out.

do you know off hand what is the voltage supposed to be for the middle wire?

 

.5 at closed throttle
4.5 at Wide open throttle

 

haven't had time to work on it yet but i'm going at it today, going to check the voltage of the wire, plug the pcv run a new hose and new pcv, and if that doesnt help i'm going to look at my vac lines again.

all this only happens once the cel comes on, before that it doesnt seem to be doing it at all.

now i'm wondering and gonna try to run the pcv from the vc and plug the stock a1's hole or visa versa.

could i run them both to a y valve that goes into one hose to the IM instead of plugging one up?

 

so i looked more into the pcv problem and came to find out that the hose going from the stock pcv to the breather box is broken, which solves the collapsed hose problem so i ran it to the vc and it seems to be running good now, have to wait a bit til it warms up and see if the cel comes back on.


can anyone answer my throttle cable/pedal problem? i'm not sure if the pedal on the integra is as low as what mine is, but it's pretty damn close to the floor now. feels like when i'm just cruising at 60 on the highway there's only 1/2 inch of room til the pedal is on the floor.. any suggestions?

 

Are you using an Integra throttle cable?

 

yep from a 91

 

Hmm, have you tried adjusting it yet? Your pedal travel is definitely not normal. Make sure your floor mat (if you have one) isn't bunched up under the gas pedal lol.

 

lol i don't have one, but i havent tried adjusting it yet havent had time but will soon. i thought the adjustment on it was just for quicker response of opening the throttle plate.

i also think i don't have my vac lines hooked up right. i've been messing with them and cant find the right way they go from all the diagrams for crx and b18's. nobody has one just for a b18 into a crx, or so it seems. i've tried regular crx ones with a mix of the b18. a b16 one which didn't work at all. i tried putting a "y" fitting to the hose from the fpr and the hose from one of the slots on the back of the IM and ran it to that solinoid valve next to the map. (which it ran alright) but then that leaves the other nipple on the back of the IM to go nowhere. and idk if i should just cap it.

 

Nope. It only controls the TB opening and closing, but not how quickly (response) it opens.
Check the cable between the adjustment nut and the wheel on the throttle body.
It should have very little slack in it.

When you push the pedal down very slightly, the tiny amount of slack should tighten up, and then the wheel on the TB should turn.
When you let off the pedal, the wheel should spring all the way back so the plate inside the TB is completely closed.

 

well yeah that too lol but it does seem to have a little bit of slack on it so i'll adjust that and see if it gets any better.

 

well for anyone who wants to know, or if this is useful to anyone... i found that my dizzy was slighty retarded giving me better top end power, i advanced it a bit and everything seems to be running good

i adjusted my throttle cable also, there was soooooo much slack that i ran out of threads to move the bolts lol.

and on the pcv, the hose going to the breather box is broken so the pcv wasn't being used at all, moved it to the vc and everythings perfect.

thanks for the help guys

 

Awesome!