So I've had this problem occur to me a couple weeks ago when I went to start it and there would be a haunting idle. But since then I've changed my spark plug, cleaned out my idle control valve along with the pcv and throttle body, and also changed the distributor and still not wanting to start when it's warm. It's not running as rich as it was before but I still think it's something to either do with fuel pump or lastly the ECU. When I go to start it. In order for it to start I have to give it gas alot to allow it to get to idle level. Please. Need help!!! BTW. I have a 1992 eg si with swapped b16a with a p30 ecu. Not sure if it's even chipped. Haven't opened it up.

 

Do you have any code?

Check your FITV is screwed all the way in, this help for the hunting idle.

Also the hard to start when warm and rich condition can be the ECT. I don't remember the ohms from memory but measure it. Search for how to test the ECT o TW sensor.

ECT test:

https://honda-tech.com/honda-civic-d...noyed-2963955/

 

The thing is the haunting idle is gone now due to changing my coolant temperature sensor. And now I've even changed the distributor and spark plugs and cleaned all the idle and pcv valves. The misfire is gone as well. I have no check engine light at all. I'm just having trouble with the warm start. I was gonna change my fuel filter tomorrow because God knows how long that hasn't been changed for. But my next guess would be to get a tune and see if my computer isn't reading anything right. I was also gonna check the main relay to see if that gets screwed with cause i know it expands when hot. I'm just lost. Done so many things to try and fix. But nothing yet. So many "or's"

 

I think you mean hunting/surging idle. A haunting idle is scary.

Add car and ECU information to your first post.

 

I have a 1992 eg si with a swapped b16a second gen. Running a p30 ecu. Not sure what the chip is. Which is why I think it may need a new tune. Was working fine and just happened all of sudden one day

 

Update: idle is gone but I'm still having trouble with the start up. It's like when I start it I have to give it alot of gas to get rid of whatever is in the system already. Once I Rev it for a little it will go down to its regular idle. Any thoughts? So far I've changed the dizzy, spark plugs, fuel filter, cleaned the icav and pcv and also changed the ect sensor. Please. Need help.

 

fwiw:

Starting Problems

 

Thank you for the help! Everything is pointing to my ignitor or ignition switch

 

If anyone has any other theories. Please feel free to help a brotha out.

 

Main relay definitely. Either replace it or repair the solder joints.

 

that is the one thing I haven't checked. I was just about to see check my injectors to see if theyre dirty and clogged or what not. But I'll check that in the morning.

 

the thing is it starts up but slowly dies. I cleaned all idle control valves and pcv valve and throttle body. But you think it's still the relay?

 

Definitely

 

Main Relay Fix, Troubleshooting (Honda, Acura) and how to solder

 

Update: changed the main relay. Still doing the same. Although it's not burning as rich. It will idle fine at 1000 rpm for a few minutes and then it will just start to die down. I can also hear a rapid ticking coming from the engine itself. Any thoughts? Please need help I'm desperate

 

Do you have a friend with a distributor you could borrow? The other common cause of warm start problems is a failing coil/ICM, which can be easily diagnosed by borrowing someone's known good distributor.

 

The thing is. I bought a brand new dizzy. And nothing happened. It did run alot better and less rough but I'm still having the problem. It's not even like it's a warm start problem anymore. It's an everytime start thing now lol. So yeah I'm pretty stumped. I was gonna check maybe valve adjusting or timing maybe.

 

Update.

So. I tested my Map sensor to see if it was getting the right voltage. And turns out that it's reading a 7.45v. When it should be around 5v. Does this have to do with the computer giving it a bad reading?

 

My vacuum lines connected to my map sensor and engine are very easy to take out could this be a result of a leak? Please help

 

Bump

 

Hello.

So I'm having a surging idle problem. Obviously my car runs and idles fine in the cold start up due to closed loop. But once it gets up to warm running temperature. It starts to idle down to 500 and gradually goes to almost stalling. Sometimes it will still after running for 10 min and I give it gas then that's when it stalls.
I'm completely stumped with this problem. Does anyone think this is a o2 sensor problem maybe. So far I have changed the main relay, ect sensor, spark plug and wires, new dizzy, cleaned pcv, idle air control valve, throttle body, and changed fuel pump, did a coolant flush, and also changed my map sensor... Was thinking it's maybe my o2 sensor. Or maybe an ecu problem. No codes are being thrown.. Please help.

Car & motor
-1992 eg hatch
-jdm b16a sirII obd1
-stock p30 ecu

 

Clean and adjust the FITV.

 

Going to do that tomorrow. But would that explain the running rich problem. I would think that's the o2 correct?

 

What makes you believe the engine is running rich?

Does the CEL work?

Related threads merged.

 

Lol. I know it's running rich. And I don't even have an engine light when I even start the car for those 3 seconds