fv8s

I have a 1995 B18c1 that is stock for the exception of an intake. The car is my DD and recently it has been randomly bogging when normally accelerating out of first gear or cruising speed in 5th gear at 45mph and roughly 1800-2100 RPM's. When I use the term "bog" I mean it falls on its face for a split second until you slowly open the throttle and then after it comes out of that RPM range it is fine. Like i said this happens very randomly (used to be around once or twice a week and now on the way home from work it happened several times). I also have a high idle and slight surging at start up until it is warm. I will be cleaning my IACV soon. Things I think it could be: Distributor (cap/rotor or even the whole distributor) plugs wires fuel filter vaccum leak Any suggestions will help. I just wanted to see if anyone had the same problem before I started to diagnose and fix the problem.

Edit. I have narrowed it down to this only happening when the engine is not at operating temperature. Once it reaches operating temperature the car runs better. And now instead of a bog it feels sort of like a miss. There are no present CEL codes either.

Note: the weather has been really bad here and there are several feet of snow. This problem had occured before when it was warm, but it has gotten worse.

fv8s

Any suggestions Ron?

fv8s

Anyone?

fv8s

I just drove the car home from work and it ran great?

fv8s

Problem is still present

Former User

Plus, wires, cap, rotor, and ignition timing -- this is where I would start.

Does the CEL work?

fv8s

I recently bought the car about a month ago. The CEL light does not flash when I turn the key to the "ON" position so I am assuming it is disfunctional? I am going to try a new bulb right now. I have a feeling it should have thrown a code by now.

fv8s

I just pulled out the cluster and the bulb was bad. The CEL light now comes on when I turn the key to the "ON"position (it does not stay on after the car is turned on). I tried driving around for a bit to see if I could get the CEL to come on but it didn't. I had to unplug my battery also. I am going now to get plugs now and I have a new functional distributor with NGK wires that will be going in today

fv8s

Just replaced the plugs with NGK BKR6E 11's
New NGK wires
New OEM Honda distributor
*Waiting on timing gun*

It seemed to run a bit better when I started it but I was not able to drive it yet. I will keep the thread updated

fv8s

Still does the same thing. I am guessing the tps now. It sounds stupid but can a bad iacv or fast idle valve cause this?

Former User

Did you check the ignition timing with a timing gun while the service connector was jumped. The engine also needs to be idling to spec. Also check your fuel injectors to see if they are dirty.

For the high idle, clean both the IACV and FITV (also adjust it).

fv8s

Ok i will do all of the above when i get home from work and let you know. I have a video of what the car does. It is hard to tell what is happening, but the idle will drop from 900 rpm to 500-600 randomly either before or after this bogging starts. If I stay in the same throttle position while this is happening it will continue to bog. If I spike the gas the rpm will dip and then respond to how much throttle I gave it. This only happens randomly and at least one time Everytime I drive

fv8s

Do you happen to know what the service limits for fuel pressure are on a usdm b18c1?

motrayEG6

full on antifreeze? mine did the same type of thing and i put plugs, cap, rotor, checked CEL fixed that code and then my buddy told me to check antifreeze and i was low and then when i added some it ran fine and that was about a month ago and im still running good

fv8s

I am pretty sure I know what the problem is. Thank you for the input though.

speedooo

My ls does the exact same thing...I just stick to not beating on while it's cold. The colder it is, the worse the bog is.

fv8s

Mine actually happens when it is warmer also. A new throttle body will go on tomorrow along with getting some fuel pressure readings. I have no access to All Data until Thursday.

Kmiller

Did you happen to figure this problem out? My b18c5 is doing the same thing, but only when the engine itself is cold. Runs perfect when its warm. But if I start it up in the morning and let it run for about a minute then go it will bog out and shut off. But if i slowly press the gas, it will drive o.k. Also backfires like a mother ****er evertime im WOT to letting going of the gas. If that makes a diffrence.

Former User

Backfiring is the sign of unburned fuel in the exhaust. Check the ignition system components (plugs, wires, cap, and rotor), as well as the coil and igniter unit, and the ignition timing.

fv8s

Mine is not a miss. It's more of a bog. It sounds like you have an ignition problem like ron stated. Tomorrow my ignition timing will be set, a new iacv will go on, and I am trying another throttle body considering I am almost positive that it is my tps. It's as if it sticks in onr spot until I give it more throttle.

Kmiller

Yeah im going to be buying a new distributer because im getting a cylinder censor CEL, Do you think that could fix it? Im unsure on how to check my timing or ignition though.

fv8s

Create your own thread and we will help you out man. To time your ignition you need to jump your service connector and get a timing gun. Then you just advance it to 16 degrees btdc by turning your distributor and pointing the gun at your harmonic balancer.

Kmiller

Lol yea dont have a timing gun, but kk sorry man to hijack your thread.

fv8s

its all good

fv8s

problem solved *for now*