Hey guys I have a 91 Integra with a B16A. Car runs great but the other day I drove it, parked it for like an hour, went to go for a ride and it didn't want to start. I did NOT hear the fuel pump turn on. I tried it probably 5 times and nothing. I came back later that night after it sitting around 4 hours and it started. It did the same thing last summer but it hasn't done it since until just the other day. The main fuel relay is brand new. Any ideas??

 

I have the same thing happening to my 92 integra. it picks and chooses when it wants to kick in. early signs of pump failure.

 

Yea I took it for a ride tonight and it started out driving fine then it started bogging bad then it restarted then it just bogged down again and would not restart. I am thinking my pump is bad. I will probably do it this weekend. Has anyone tried the airtech fuel pumps at autozone??

 

The problem is most likely the PGM-FI Main Relay, a common problem on older Honda/Acura.

Google Honda main relay repair, for a DIY repair of the relay, repairable 99% of the time. 94

 

Are you talking about the main fuel relay under the dash by the steering column?? If so that is new. I talked to the previous owner and he had the problem happen a few times then it was fine after that. He said when it was humid it would happen but then it was fine after that?? I just don't want to replace the fuel pump and that not be the problem.

 

fwiw a good main relay repair guide:

http://techauto.awardspace.com/mainrelay.html

and good idea to have a spare fuel pump imho.

get brand x for $25 at rockauto or wherever or original used from car-part.com.

 

The main relay is brand new though. I am leaning towards the fuel pump.

 

New, as in you just installed it?

It is a lot easier to check the PGM-FI Main Relay, [yes the PGM-FI Main Relay is the fuel pump relay, it also contains the fuel injector relay] then it is the replace the fuel pump.

The problem may not be the PGM-FI Main Relay itself, it may be it's ground, a common problem, [redo the thermostat housing ground(s), it can also be a power to the PGM-FI Main Relay problem, there are three (3) of them...

1- Black/yellow, fuse 24 - 15A, [hot in run and start] in under dash fuse box.
2- Yellow/white, fuse 38 - 10A, [hot at all times] in engine bay fuse box.
3- Blue/white, fuse 18 - 7.5A, [hot in start only] in under dash fuse box.

1 and 2 need to be tested when fuel pump is not priming.

However, if the fuel pump is the original one, it is way past due to be replaced anyway.94

 

Thanks for the tips guys. Yea I just replaced the MFR with a brand new one. Long story short, I took it into a mechanic. They didnt want to touch the car because they looked at the fuse box under the hood and some of the plug ins to that box were burnt. (The plug ins that are clear) So they didnt want to be liable if it starts on fire and so on. But they did say the voltage to the pump went up and down when they pressed on those wires. Any idea why those wires would be burnt?? Or could they just be super corroded and they are just saying they are burnt??

 

"Burnt" is burnt, as in "scorched", as in "black and melted". I wouldn't touch that either, if I might end up on the hook, liability-wise.

"Burnt" means you have some seriously bad dead-shorts that could conceivably turn your vehicle into a carbecue. About 99.99% of this type of electrical problem I've seen are due to aftermarket intrusions into the factory wiring.

Take a look for yourself. Take some pics and post them here.

 

Ditto the above^^^.94

 

Ok I will get pics up this week. It does have a B16A swap so I hope the dinglenuts who did the swap didn't screw up the wiring too bad. Oh it also had a Viper alarm which I disconnected.

 

Hey guys sorry for the hold up on this thread. Haven't been on in a while. So here are the pics. Here is a pic of the fuse block that is causing problems (as far as I know) It is the one located on top of the passenger strut tower under the hood. And also the "mystery wire" on the passenger side. It is a white wire with a green stripe on it. Its not going to anywhere. Just sitting there. Any ideas??

 

F+%k hippies and their lead free solder campaign.

 

Sorry, I'm not a member of AOL, so I can't see your images. Please put the pics on a site that doesn't require a logon.

 

It wont let me upload the pics. How do I get them on here any other way??

 

Bump. Alright so it has finally warmed up outside and I'm trying this again. Yesterday I tested back by the fuel pump under the back seat to see if I had power to the fuel pump. I did NOT have power to the fuel pump(tested the yellow/black wire). So after that I hooked a wire from the positive battery terminal to that yellow/black wire(fuel pump power wire) under the back seat and then all of a sudden the fuel pump kicked ON!! So I need to find out were to test next. I was thinking maybe test the main fuel relay and the fuel injection main relay(the one that says Mitsuba on it). What do you guys think I should do next??

 

You can post pix right here.

Click on Go Advanced at the bottom of the window.

The "tool bar" at the top of the window will change, you will see a paper clip just to the right of the smiley face, click on it, a browser window will pop up, click on one and select a pix from your pictures then up load it, ones uploaded the browser window can be closed.

Now click on the paper clip again, and there will be a "drop down" of the pix you have uploaded, select one or all and click on it, pix will "paste" where you have set the curser...


You can preview the post to see what it looks like before you post it.

Way better then any other way 94

 

Thanks for the tips FCM. I appreciate it. I will try that tommorw if I get time. Any idea on what I should try testing next?? Sees how I'm not even getting any power back to the damn fuel pump.