What up Honda tech, I've searched all morning read through countless threads and tried many answers given... So I figure it's time to just ask. Here's the scoop - two days ago I went out to run some errands in my 99 ek coupe with the b18c1 swap everything was fine I went to grab some lunch and when I came back the problem started. As I went to turn her on she all of a sudden idled extremely low and a bit rough but not enough to feel it in the cabin. I quickly decided to go straight home, not long after that my check engine light went on, I stopped at a near by shop to see what the code was, my ecu wouldn't talk to the system, which is a first. So I figured I'd just come home and bring it to my uncle in the morning. Now yesterday morning I awaken to drive to my uncles and now as soon as she turns over she immediately turns off, the only way to keep her running is a constant throttle but as soon as you let off the gas she stops. During my search between yesterday and today I've checked compression, changed spark plugs and wires, and even my MAP sensor and still nothing. I have no idea what to do so here we go people show me you knowledge. * most of you may know this civic, it's marklnds slammed vsm coupe. My ecu is a p28 chipped on Crome* also I figured this was the best place to post because I think it's something electrical, if not I apologize.

 

Read this thread and figure out what your CEL is. Go from there

https://honda-tech.com/forums/acura-integra-6/ecu-abs-codes-here-978933/

 

Check PCV valve and see if it's clogged? Other than that I had something similar while using a piggy back harness for a Field's. Check all your connections and see of some harness came loose or has a wire is partially out.

 

Thanks in tried thisna couple times but it seems my car car clears the code one the ignition is turned off so I can't get the cel to flash because I have to wait a few seconds for it to show up

 

when the CEL turns on, don't turn the car off yet. As the car is still running and CEL on jump the two-pin plug and read the flashes.

 

Will do, also checked the pcv and it's not clogged

 

Ok so I got long long short short short short but there doesn't seem to be a 24 on the list, this is starting to **** me off lol anyone in the hopewell flemington area wanna come help me lol

 

Post a vid of the of the CEL when you jump it so we can confirm it.

 

Figured It out, it was an o2 sensor (1) and the idle air control valve (14) thanks for the help though guys I appreciate it.... I'll post if it works

 

Cleaned the iac, she starts now but she still idles rough so I'm trying to find a new iac to swap out and see if that helps

 

Bought and put in new iac and she runs better than before, again thanks for all the help