h22 bucking and surging

[Accord_exR]

just got my old cb back h22 with h23 tranny current issues are an idle surge.. typical rpm idle surge pretty steady surge 1000-2000. i also have bucking. meaning the car jerks at low rpm only when i lay on the gas a bit does it clear up - not even WOT half way pressing gas clears it up. currently the car has a AUTOMATIC B18 throttle body which doesnt have the fity or whatever on the lower part of the TB its just a loop for the coolant lines.

any tips to look at ive considered vacuum line leaks, coolant needing bled, etc.

could BOTH of these issues be the result of the throttle body, bucking due to TPS and idle surge as well and not have the fitv..

ALSO im not throwing any codes at all

edit: its a 5 speed if u didnt catch it 93 lx

[Accord_exR]

just double checked and im infact not throwing a single code jumper leave the cel on solid

[Losiracer2]

put the right TB on. What did you expect was going to happen, you put a TB on that's from a 1.8L engine. Why on earth would you do that?

Getting the correct H22 or H23 TB will have the right FITV underneath it probably eliminating all your problems.

[Accord_exR]

i actually didnt put it on lol previous previous owner. i wouldnt be so stupid reallly what i was looking for was a post like yours confirming the problem lol its SUPER cold here so time outside is precious haha

[deevergote]

As said, use the correct TB, and correct your idle issues as specified in the thread marked "read here first" at the top of this section. You'll find a very helpful thread by HondaFan81 in there that will tell you exactly what you need to do.

As for the bucking... it almost sounds like an oxygen sensor issue. I had a similar issue with my car, where I would have no power sporadically, and then suddenly power would kick back in. No CEL was thrown, most of the time (eventually, code 43 would pop up, which is an o2 sensor code.) If you haven't replaced the o2 sensor in your car, then I suggest picking up a Denso or NTK sensor (NO Bosch, they don't work!) Even if it's not the solution, it's a good thing to change. Be sure to get one with a proper plug (get one made for your car, not your engine), and do your best not to splice wires... as splicing can cause issues in the signal.

[Accord_exR]

So i changed the throttle body back to the stock h22 with good tps and fitv. Now i have a high idle around 3 k. We looked everywhere but didnt touch the iacv. We did however notice the large nipple on the back of the intake maniwas loose... so loose you could pull it in and out with ease. I picked up some jb weld and spread it all around it.. im waiting ivernight gonna check in morning.

Any other things i could consider?

[Accord problems]

So i changed the throttle body back to the stock h22 with good tps and fitv. Now i have a high idle around 3 k. We looked everywhere but didnt touch the iacv. We did however notice the large nipple on the back of the intake maniwas loose... so loose you could pull it in and out with ease. I picked up some jb weld and spread it all around it.. im waiting ivernight gonna check in morning.

Any other things i could consider?

Jb weld! why did you do that? If a part is broken you should replace it not jb
Weld it.

[Accord_exR]

because there its supposed to be attached to the intake manifold how was it originally held on? its not like it bolted on. it is sealed now and i still have a cold idle of 2500 and warm idle of 3000 im going to replace the intake manifold gaskets today, the whole set.

[Accord problems]

Im not saying this would fix your problem. but I would replace the intake if that part is
As you say it is.as deev said adjust your idle. In the top of the throttle body there is
A screw to adjust it. Search in the stickys up above like deev said. You will finde a lot of stuff that just might help you.

[djcaz_aom]

Have you checked to see if you have a leak?

Carb cleaner works great while the engine is running.

Also, have you set the idle correctly?

There is a sticky that outlines the procedure.

[Accord_exR]

so jb weld didnt work... hmm

what i also did in the morning yesterday was i started it to see if the leak was gone due to the brake booster. still idled at 2500k

i took off the iacv and changed it with a clean f22 one. now a different problem arises.. it idles up to 3ish k and slowly drops down and idles rough till it dies a few seconds later.

my buddy came down and we were going to change all intake gaskets but NO parts store has them and cannot get them period. UGh

so were messing around and due to the new issue wonder if the map is messed up we unplug the vacuum line and it seems to want to run better.

anyways im going to the junkyard this afternoon gonna pull an intake manifold off a h23 and use the upper plenum.

also gonna snag a few map sensors because i have an issue now with it not wanting to stay running and it seems to run better with map not plugged in.

also grabbing a new line for my brake booster

and anything i see / can think of.

and new gasket from advance autoparts

[Accord_exR]

update: its been almost a week since i swapped the upper plenum with a h23 one along with the tb off same car. replaced gaskets as well. it starts idles at 2k comes down to idle at 1k when warm but i have a few issues. not major though.

1st is that when its warm i get an erratic idle SOMETIMES
2nd is that at idle cyl. 2 is not firing ( ipulled both sides of the plug wire and causes no change in idling) with this im thinking i have fouled the plugs still need to check for sure. also wondering if its an injector. question about this first what do you guys think and are h23 injectors the same as h22?

im curious if it is an injector what are the main reasons injectors fail? the misfire does clear up when its reved or while driving and pulls as it should.

thanks guys as ive said before TRUE community here.

[flatrex]

Inspect your ignition system cap rotor wires plugs. Chances are you have a bad plug wire....

[Accord_exR]

u really think its a bad wire? that just seems odd to have a single wire go off like that.

[flatrex]

Its actually pretty common.