Civic-EG.com Forum 3.3.1

- Wed Mar 16, 2011 4:02 pm #244258

ok so this is how my vacuum is hooked up FPR just goes straight to the intake manifold, i dont have a IAB vacuum tank or an evap purge control solenoid valve



is this ok?

does anybody have the fuel pressure regulator part number...stock one?

thanks

I dont know the part number. Find which year and model honda your motor came in and then tell the auto parts place you need a fpr for that car. Good luck hopefully that fixes your problem.

Yeah your fpr should just hook strait to your intake. The purge control valve is not important.

Does the vacuum line just go strait into the back of the intake where your pcv should be? If so try pulling it off, the pcv has a breather so i dont think its actually supposed to create vacuum. My car has the canister line plugged and the intake one is still connected to the pcv. (the top of my pcv broke when swapping motor). If yours is connected then it could essentially create a vacuum leak.

94 blue lx sedan (sold)
95 black ex sedan (wrecked)
93 white z6 del sol (Sold)
95 red y8 hatch (sold)
98 red coupe

- Thu Mar 17, 2011 12:00 am #244346 got home and checked, got good vacuum to my FPR and the rest of the vacuum lines look good. when i pulled the vacuum line off the top of the FPR it didnt change the idle...i'm thinking that the FPR is it, yeah?

- Thu Mar 17, 2011 10:50 pm #244560

got home and checked, got good vacuum to my FPR and the rest of the vacuum lines look good. when i pulled the vacuum line off the top of the FPR it didnt change the idle...i'm thinking that the FPR is it, yeah?

yeah your idle should increase a little when you pull your vacuum line.

94 blue lx sedan (sold)
95 black ex sedan (wrecked)
93 white z6 del sol (Sold)
95 red y8 hatch (sold)
98 red coupe

- Sat Mar 19, 2011 6:19 am #244833 ok replaced the FPR and it is still dumping too much fuel...please help anyone

- Sat Mar 19, 2011 1:19 pm #244849 Have you checked your iacv to see if it was clogged? checked compression? has it had any motor work done recently?

94 blue lx sedan (sold)
95 black ex sedan (wrecked)
93 white z6 del sol (Sold)
95 red y8 hatch (sold)
98 red coupe

- Sat Mar 19, 2011 2:16 pm #244851

Have you checked your iacv to see if it was clogged? checked compression? has it had any motor work done recently?

yes pulled it off last weekend and cleaned it out, didnt look bad to begin with. have not checked compression. and no clue about motorwork, the car is as i bought it.

- Sat Mar 19, 2011 5:15 pm #244861 well im not very familiar with your problem. Im guessing others arent either since not many have jumped in to try to help.

It could be a number of things. The three i named are the first ones i thought of after all the other stuff youve already run through.

It could be wiring, vacuum, your cpu, engine comression, problem with your valves, etc.

Could even be something in the gas.

Have you tried giving it a small amount of gas when it starts to die? Or does it cut off instantly? If you have tried how does it behave before it dies?

Considering its completely dying on you its less likely to be vacuum. Id start with checking your engine compression. Unless someone else has another idea.

94 blue lx sedan (sold)
95 black ex sedan (wrecked)
93 white z6 del sol (Sold)
95 red y8 hatch (sold)
98 red coupe

[suspendedHatch]

- Sat Mar 19, 2011 5:33 pm #244866 If it dumps enough fuel for long enough it will flood out and stall.

What happens when you unplug the IACV?

Does your throttle body have an FITV with coolant lines going to it? Is it the original throttle body?

Is your distributor cranked all the way to one side, or roughly in the middle?

Is your intake manifold missing the IAT (open hole) or any open vacuum ports?

Check if your intake manifold is cracked especially around the mounting plate to the head. And check if you have a bad gasket.

That pic was of a GSR and that's why you don't have the IAB inline with your FPR.

- Sat Mar 19, 2011 8:10 pm #244893 ok so i was working on it a little bit before i read this, and it went like this...i was able to get it finally down to 900 idle, messing with the throttle, but as soon as i touched the pedal it would just to either 3000, or 4000 RPM's. so checked the TPS and its all in specks.

got on here and saw the updates so i went back out there and started up my car...shot straight to either 4000 or 4500 RPM's (i unpluged the IACV a couple times just to make sure it did the same thing every time) and after i unpluged the IACV it would drop down to 1500 but it would be a very rough idle.
i took pics to make it easier to help identifly if everything is right

throttle body. not sure if its the original as i bought the car with it already swapped.

dizzy


it looks like it is in the right spot


i am missing the hole and was going to elongate the wires and run my IAT into my intake

and this is just an over all at my intake area. no open vacuum ports and i couldnt see any cracks anywhere and as far as i can tell the gasket looks good and doesnt look seperated anywhere

- Sun Mar 20, 2011 8:05 am #244980

That upper hole just look blocked in the picture or is it blocked? Stick your finger of each to make sure they are sucking.

A cracked intake mani or a loose intake mani sounds pretty likely too. It would have the high idle i didnt think it would shut the car off though. (you would probably be able to hear a leak if you put a stock intake on).

94 blue lx sedan (sold)
95 black ex sedan (wrecked)
93 white z6 del sol (Sold)
95 red y8 hatch (sold)
98 red coupe

- Sun Mar 20, 2011 12:29 pm #245003

That upper hole just look blocked in the picture or is it blocked? Stick your finger of each to make sure they are sucking.

A cracked intake mani or a loose intake mani sounds pretty likely too. It would have the high idle i didnt think it would shut the car off though. (you would probably be able to hear a leak if you put a stock intake on).

the throttle is not blocked, i just took it off a few weekends ago and cleaned it. intake mani isnt cracked or loose, but im going to check again today. and i dont have any sort of stock intake

- Sun Mar 20, 2011 2:16 pm #245013 checked the bolts and looked again for cracks...the bolts are tight and i still dont see any cracks

- Wed Mar 23, 2011 4:40 pm #245677 ok, so i've been sick and havent been able to work on the car...till today, my last sick day from work thought i would put it to use and work on my car.

so i ordered and replaced the IACV and it solved part of the problem, its not hunting anymore and it has chilled the idle down but it is still dumping too much fuel, and have to keep hitting the petal just to keep it running.

please anybody help, why am i getting too much fuel?

[suspendedHatch]

- Wed Mar 23, 2011 4:52 pm #245684 Is that throttle cable too tight and holding the throttle plate partially open?

What RPM is it idling at now?

What ECU are you using? What's the part number on the side of it?

Besides visually checking for leaks, people often spray car cleaner around suspected areas as the spray will be sucked in a vacuum leak and affect the way the engine runs. Although if you really are running rich, it might not affect it.

Did the problem begin after you took off the throttle body? Did you spray water, chemicals, compressed air into the MAP sensor when cleaning it?

- Wed Mar 23, 2011 5:14 pm #245688

Is that throttle cable too tight and holding the throttle plate partially open??

it was, then i backed it off

What RPM is it idling at now?

i cant get it to stay running now since i backed down the throttle but before i did that it was about 2000

What ECU are you using? What's the part number on the side of it?

37820-P75-A01
830-149838 then there is a AW in the corner

Besides visually checking for leaks, people often spray car cleaner around suspected areas as the spray will be sucked in a vacuum leak and affect the way the engine runs. Although if you really are running rich, it might not affect it.

i would do this if i could get it to stay running

Did the problem begin after you took off the throttle body? Did you spray water, chemicals, compressed air into the MAP sensor when cleaning it.

it was having this problem when i bought the car, part of the reason i took off the throttle to clean it. the only thing i used was carb cleaner and it might have been sprayed into the map...i cant remember i did it awhile ago