Got a 92 civic with a b16a2 engine, sometimes starts sometimes doesn't. I could start it and turn it off and then sometimes won't start back up. Then will start up later. What do I check, where do I start?

 

Anything anyone?

 

Like, turn the key nothing happens? Or turn the key and tries to crank over and nothing happens. Should me more specific when asking questions related to "no starting" issues.

 

coil? ignition switch? all just guesses without info.

 

Does the fuel pump prime when the key is turned to the on position?

 

Turn key and tried to crank over and nothing happens. When turned to on position I hear a noise for about 2-3 second idk if that's the priming noise or the relay but I know I hear something. It starts up sometimes, but it doesn't start more than it starts. When it does about to start it sort of starts and then dies out. Then I try again quickly after and it does the same. But I noticed if I give it a little gas it will start at the dying out part. Then I could drive it somewhere then turn it off. Go about my business then come back to it later on and it wouldn't start again. Back where I started turn key, crank trying to turn over but no start.

 

Sounds like you are saying it cranks, or turns over but doesn't always fire.

I would check the fuel pressure with a fuel pressure gauge via the Factory Service Manual.

When was the last time your fuel filter was changed? Another spot that could affect fuel is the pressure regulator.

You state you have a swapped engine, what ECU are you using with your B16A2?

 

Could be the reason. So my car got breaking into a while back. They pull steering column panel off and pulled a BLUE wire coming from ignition.
Ever since my fuel pressure guage went very high bury needle to max and then few days later it doesn't work at all stays at 0. Idk if it has to do with that wire or what. I did change my fuel rail because previous fuel rail was leaking and old so I got a new AEM fuel rail. I'm sorry for the confusion but I change the fuel rail first THEN car got broken into with ripped wire and THEN fuel pressure guage started acting up. And then last the crank no start intermitedly problem started.
I have a CEL for automatic transmission b signal I have the original ECU that came with the car. But the automatic transmission CEL did not affect starting problem until car got broken into. Idk if it's related could possibly be whatever went wrong went bad same time as my car got broken into

 

Did you get the car with the B16A2 already in it?

Also, do you have an aftermarket fuel pressure gauge that you are talking about or are you talking about the stock fuel gauge that tells you how full your gas tank is?

Seems you have some issues going on. I'd be going over the wiring with a fine tooth comb to be sure it's all operational, after that you can begin troubleshooting mechanical items.

 

B16a2 engine was already in. Aftermarket fuel pressure guage liquid filled one talking about that one.

 

To be helpful to the community and to yourself, can you pull the numbers off the ECU case?

Looking for the Pxx-Axx part of the number.

The more information about your setup the better.



The top number is the one you are looking for.

The ECU resides on the passenger side under the carpet on the side wall, door side just under the glove box.

 

I looked at it and it says it's a p30. Also I noticed it starts when cold but if I drive somewhere it won't start back up when it's warm I have to wait till it cools then it starts up again.

 

Did you replace your entire ignition harness with a known working one or just ghetto rigged it? You're gonna need to provide us with that part # on the ecu to confirm what ecu you have.

 

Don't know about ignition harness. Got the car from cousin like this. He left for mainland and it was sitting. Lost his contact so couldn't ask what was done. This is the ECU in the car

 

Thanks dude, if you can tomorrow take the lower panel of the dash off and take the steering wheel cowl off and take pics of the ignition harness. You'll notice it going from the ignition switch to the fusebox.

 

Ok I'll do that tomorrow. But did you get the start up when cold and doesn't when warm part? I can drive like 5 minute and pull over and try start and it won't. Then wait till engine cool down then it will start up again. Idk if that helps any but I've noticed that. Like when I wake up and start car in morning to go work no problem. But if I stop store before work then come back to car it won't start till engine cools down like I said. Weird. Sorry I don't know much about cars still learning. And new to this forums so really don't know what info to put out there for you guys.

 

When I had that problem it was the fuel pump relay (I think it is also called the main relay). The solder on the relay gets old so when it is hot it makes a bad contact. You can re-flow the solder to get it working again. But with this problem you would not hear the fuel pump prime when you turn the key to 2.

 

Yeah I can hear the relay click but I don't hear the fuel pump prime. Maybe it's that. So should I resolder all connections on main relay?

 

I suppose it could click and not prime, but usually it doesn't click or make the fuel pump prime (you hear it whine if you listen carefully). It's worth a shot, but it sounds like it could be your fuel pump.