sw20 ant

I just swapped in a b20b4 into my car using a b18 intake manifold and all obd0 components. now here are the issues!

it idles at like 1500-2000 or a little lower. with the tps hooked up without tps it's at 900. I tried to keep it at 900 with tps hooked up and it will stay for like 10 mins of driving the it starts jumping up and down!

sometimes the car will drive great with no bogging and super smooth and other times it will lag and feel choppy until it hits 4k rpm the it comes to life! almost like it has vtec. it won't run good without the dizzy fully advanced! I checked the cam timing and it all matches up!

it throws codes 43,9 and 12. it only throws the 43 sometimes and I know 12 is the egr from it being a auto ecu, I have my old pr4 ecu but it was throwing the Baro sensor code so I picked up a pr4 with internal baro.

as far as code 9 well I had 1 dizzy take a dump on me so I picked up another and it's still throwing code 9! could this cause the bogging sometimes issue?

it also has a jump sometimes at 3k rpm the whole engine jumps but it only happens sometimes. the car doesn't die out or almost die, it drives good other than the bogging every now n then.


right now I'm cleaning and re sealing the engine intake manifold, Iacv, Fitv, idle screw, new intake manifold gasket and throttle gasket. it has brand new oem cap,rotor,wires,plugs,water pump,timing belt.


I'm also checking the entire engine harness right now! thanks for any future help!

sw20 ant

I'm trying to sort out these issues before I throw my turbo setup on! the engine is super healthy it just has electrical crap goin down!

n0thin_2z_here

Is you tps calibrated? Have you checked the timing? Does it still lag under 4k without the tps?

I recently had some similar problems over the past few months, I don't think I'm an expert on this issue by any means but hopefully I can help you a bit.

sw20 ant

with the tps not hooked up it will lag all the time and with it hooked up it only lags sometimes. I printed up the timing Guide from the manual and it says it's on good timing, I don't know how to calibrate the tps exactly but if I adjust it so the idle is low it will drive for 10 mins with an idle of 900 and after the 10 mins the idle will start jumping up and down.

thanks for the response!

n0thin_2z_here

I did something similar. I may not speak for everybody here and I'm no mechanic, but from my experience adjusting your tps to solve idle issues is only compensating for the real high-idle issue. It's probably best to recalibrate the TPS since it's been adjusted.

If you already have your throttle body off the car, follow This link here, scroll down until you see the voltmeter. You need to follow the 6 steps starting one picture above that voltmeter.

That may not fix all your problems but from my experience, a properly calibrated TPS was worth a high idle in comparison the all the side effects I got from having an uncalibrated one.

As far as the high idle goes, let's see what happens after you are done cleaning and re sealing the engine intake manifold, Iacv, Fitv, idle screw, new intake manifold gasket and throttle gasket

B_Swapped93

http://www.team-integra.net/forum/bl...peed-gen3.html

sw20 ant

Ok so here's the update! I did all the work and the only thing that changed was the rev lag I had (air leak) when i would rev the engine or shift it would stay up for a second and then drop down to idle. that's gone but the high idle is still there and I think it's higher now! The idle screw is completly sealed, intake manifold and throttle body gasket brand new.

I unplugged the IACV and the idle dropped crazy so that is working fine, IACV,FITV are completly sealed along with the cold start assist on the front of the intake manifold. I completley sealed anything that can possibly leak air on the throttle body! I reset the ecu and now the only codes I'm throwing are 7 and 9, I'm picking up my new tps today to eliminate the code 7.

codes 43,13 are no longer there and haven't came back since! my idle is steady at 1800

B_Swapped93

Ok so what happens if you were to put you bare hand completly over the TB ? 2nd #9 here this may help https://honda-tech.com/forums/acura-integra-6/check-engine-light-code-9-obd1-2788506/

last there is a screw that holds the throttle plate at a certain "opennees" if you will does you'r throttle plate almost fully close ? or does it seem to be open. the only air that should be coming threw at idle is from the iacv hole afaik

fcm

I would recheck valve timing, the distributor should not have to be turned, "fully advanced" for ign. timing to be correct, [around 18 degrees BTDC].

Has the engine block been "decked" or the head machined? 94

sw20 ant

The guy I bought the engine from said it had a cometic head gasket and the head does look very very very clean inside and out as if It was hot tanked.

I'm going to check the timing on my next day off and I hit up a friend who has a buddy who is really good with Honda engines so he's going to come help me out with the timing part.


Maybe they took too much off when they decked it so the height changed and now needs differen't timing marks?

sw20 ant

So I have this thing going on with the car and Idk why it does this but whatever it Is I wish I could keep it at that low of an idle!

sw20 ant

Then I found this broken hardline when I was going to replace all the vac lines, so I just ditched the hard line and did all vac hose straight to every source. after doing this the idle got even higher and the idle lag came back, It idles at 2k flat now and when I tap the gas real quick the idle stays up for a bit and drops down. I have all proper size vac line that fit on good and tight

sw20 ant

Thank you for that link to the other thread and I made a video of the idle with my finger over the Iacv hole and the FITV hold is constantly sucking air

sw20 ant

So now the idle is at 2100 and stays there! Every gasket is new and there was no left over gasket on the throttle body part or head to manifold. I made sure to scrap all and any left over gasket with a razor blade, they are all completely smooth!

I replaced all vac lines on every part of the engine and all coolant hoses have fresh clamps and no the old squeeze clamps. I sealed the IACV,FITV and throttle screw!

Tomorrow I'm going to make a block off plate for the FITV as I don't really need it here in California anyways. going to make it and put a whole lot of silicon on so It doesn't leak haha. Also going to make a junk yard trip to pick up a couple interior pieces I might pick up a couple IACV as well