acmoc

If it's warm it needs less fuel, if you're dumping too much fuel(which a car will to compensate for a faulty sensor because its safer will make it run rich and hurt performance).

How is your heat? Are you overheating at all? After changine the sensor you will loose coolant so follow the procedure I mentioned to get rid of air bubbles.


Oh yea, sometimes it;s lame to have things coincide by coincidence but your header swap could just be that. And you could need a tuneup or something.

spartan_chaz

Heat works just fun and never over heated at least not that i know of lol. and yeah a little sucky but lets hope it fixes it would be a nice thing to know a $10 part fixed my issue lol

sacermors

Oh yeah coincidences suck. I had a Dodge Neon that blew a coolant hose and as soon as it started to overheat shut off and wouldn't crank again. Thought it blew a head gasket or worse. Turns out the EGR valve decided to stick open at the same damn time the hose blew.

acmoc

My coolant temp sender decided to stop working when I changed a radiator hose.
I thought I messed something up.
What's worse is I bought one at kragen and it also didn't work. It wasn't until I pulled an oem one at the junkyard that it worked.

You can imagine after using the kragen one I thought it was something else still.

So go oem for some things


How is the health of the engine overall?

The distributor good and the valves properly adjusted?
No vacuum leaks and are all the grounds properly connected? There is an imortant one on the thermostat

sacermors

I'm currently dealing with a coincidence on this car now anyways since I replaced cap rotor and wires. It developed a miss and stutter right after. So I turned around and bought oem cap and rotor. Wires are ngk blues. Still didn't fix it so something else decided to go out apparently at the same time. Still haven't found it.

spartan_chaz

Engine is rather good for an old honda. Doesnt burn oil one bit! Everything in the ignition, including the Distibutor was replaced within the past couple years. Im pretty sure all grounds are connected. and as for vaccume leaks i havent checked for those just yet. And i did a valve adjustment on it within the past 6 months.

spartan_chaz

And its gunna have to sit for a bit till i figure these issues out...Means i have to drive my SRT-10 Ram everywhere with its 12 MPG....*cries silently*

spartan_chaz

as an update, i have replaced the coolant temp sensor. I drove the car till it warmed up and the issue is still there. Any other suggestions before i go about putting my stock manifold back on so the o2 sensor is in it original spot?

acmoc

Spark plugs and distributor check

spartan_chaz

The plugs were replaced when i got the car about two years ago but i will go home and check them when i get home. I dont want to keep throwing parts at it...And honestly it seems like iv been the only one to have this particular issue lol

ryanevansoh

When it's warmed up is it running like it's on 3 cylinders for the first 2500ish rpms?

acmoc

Do you have a exhaust leak or vacuum leak?

I can only see putting the stock manifold back on.

spartan_chaz

yeah that's pretty much what happens.

ryanevansoh

Sounds like a bad igniter to me. I've had this happen to me several times with a few different ef's. Aftermarket distributor I'm assuming?

spartan_chaz

Yes it is aftermarket

sacermors

Two year old plugs... id definitely atleast give em a look. Can tell you a lot about what's happening in there.

spartan_chaz

yeah...i wasnt able to look at them the other night but tonight im taking the car to a buddies are we are going to go at figuring out whats going on together tonight. Two eyes are better than one as they say.

ryanevansoh

I would try replacing the igniter with a known good one

spartan_chaz

My only issue is dont want to just keep throwing parts at it. Rather figure out what then replace the part causing it. Today driving it to my buddies house it seems to have gotten a little worse. I dropped it off with him and he is going to mess woth it during the day to diagnose it. Im too frustrated with it so time to get a fresh pair of hands and eyes on it. Guess its back to driving the gas guzzling truck till its fixed...

spartan_chaz

And is my assumption correct in thinkng when you ignitor you mean the ignition coil that is on the distributor? Or is it another part? If its another part then where is it located and is there a way to check if its bad before i buy a new one?

acmoc

The ignitor is located inside the distributor. It's like a small chip sized thing.

Usually the dizzy goes bad with it, or soon after.
The ignitor alone is pricey, better to get a whole distributor, with new with cap and rotor included for only a few bucks more.

spartan_chaz

Well looks like we found the issue. The EGR is messed up and staying open when the car was warmed up. Causing the car to run bad when hot.

acmoc

Oh man. I thought this was a d16

spartan_chaz

Its an HF d15b6 but im starting to save to do a B16a swap

acmoc

My d16a6 does not have a egr, that I know of