Rep Power: 0

ok so heres the deal i have a 95 coupe with a b7 in it....i know a b7...

I have been having a couple issues that i cannot for the life of me figure out. It pops like a miss at idle, it runs rich as hell, it bogs itself down really bad sometimes to where it seems like it will stall. It has no acceleration at all hardly...sometimes if i get it at a high enough rpm it will clear itself up a bit, but under 2k it falls on its face. It stumbles on acceleration badly. at idle sometimes it will almost sound like i have a friggin toda in it. Below is a list of things i have replace and/or serviced.


new parts:
plugs
wires
rotor
cap....then whole dizzy itself
fuel filter
iacv
tps n map
cleaned the tb with new gasket
intake mani gasket
pcv valve and hose
did vacuum test it checked out ok
compression and leak down tests seemed ok....not perfect but passible (motors almost 15yrs old)
idle adjustments
new timing belt and water pump
engine is sparking when its supposed to
fuel pump comes on voltage tested ok
fuel rail is recieving fuel


it has honestly got me fn stumped......if you have even a slight bit of advice on what i could possibly check next lemme know

 
Rep Power: 0

Sounds like you have a timing problem. When my car's ignition timing was off, I experienced all those symptoms except for the running rich. Did these problems occur after you replaced the dizzy and timing belt? If so then i recommend getting the timing checked. If not check the ecu for codes

 
Rep Power: 216

Could be a timing issue but you said that the fuel rail is getting fuel but are the injectors working. Check the injectors and when I say check them I mean hook them up to the tester and test them to see if they are working properly. You have mainly done alot and most of the stuff. When I first started reading it i was bout to say do a compression test but you already have so. It could be timing, fuel injectors or it might be the ecu man.

 
Rep Power: 209

^I agree. The poor mans way to check the injectors is to get a long screwdriver and put the tip up against the injector and your ear on the handle, and listen for it clicking.

Also try fuel injector cleaner. You could go get them cleaned but that cost alot. In fact sometimes it's cheaper to just buy a new set.

I would start with timing the ignition cause that cost's nothing.

Hope that helps

 
Rep Power: 0

timing is within 6 degrees so i know its good for sure. I did the tip deal with the screwdriver already and they are firing but i dont if any of them are clogged or not. Im pretty sure they are the culprate, i took them out last night and they plastic tips that are usually orange on them, that go into the intake ports were cracked so im thinking thats either causing blow by or a mis-spray. Its the only thing left I have to think of, ive checked and replaced everything else to be honest, i was just open for any other suggestions i may have been over looking.

 
Rep Power: 0

when i get the new set this week ima sea foam the entire system as well. Ive tried gum out and stp but neither of those seem to work. Im 100% sure though that its not timing i did it by hand so i knew #1 was at tdc on the crank then turned the cam without the belt on it so the rotor was lined up with the #1 spot on the cap and the gear was lined up with the head. Its got to be the injectors considering ive got 124k on the chassis, and idk how much is on the motor because the previous owner swapped it in, so theres no telling to be honest.

 
Rep Power: 0

wouldnt a faulty ecu throw a dtc 0 though? Im storing no codes at all and everything else seems to be functioning properly.

 
Rep Power: 0

ok so i changed the injectors with a good set, it helped some, but it still bogged a bit, and spit and sputtered. my buddy gave me a set of good plug wires just in case, put em in....no change. So im thinking its either the fuel pump is faulty....because i know it turns on, an intake air leak (we heard a leak but thought it was the brake booster line) or a clogged fuel filter seeing as mine has about 10k on it. Im thinking of making a video and posting it.

 
Rep Power: 236

When you cleaned the tb did you notice any looseness, tightness, or misalignment on the throttle valve and/or shaft?

 
Rep Power: 209

It could be the fuel pressure regulator. I don't know how to test em. But if it's cheap you could try replacing it.

 
Rep Power: 0

tb is good, its within spec. the throttle cable is good as well. the fpr is good when i disconnect the hose it loses vacuum and no gas squirts outta it which is usually the 1st sign of one going bad. I tried replacing the brake booster hose that had a puncture and no bones either. so its occuring to me that im looking in the wrong area lol. Ima check my valve clearances, ive never known a maladjusted one to cause missing this bad stalling...etc, but hey its free and ill check it out.

 
Rep Power: 209

Did it happen right after you replaced the timing belt?

 
Rep Power: 236

Cheapest way I know of testing: http://www.harborfreight.com/fuel-in...ter-92699.html

You can get the regulator for $32-$85 here: http://www.rockauto.com/catalog/raframecatalog.php

OEM- fuel pump assembly as a whole: http://www.bkhondaparts.com/billkay/...itch=&hidIrno=

 
Rep Power: 0

no its been popping a bit for awhile and always been a tad sluggish but recently is gotten worse, ive only put 15k on it since ive had it. i know the fpr is good for sure. Its got to be the fact that my valves are out of adjustment....or a malfunctioning fuel pump. Ive never heard of a pump kinda goin bad over time i always thought either they worked or they didnt, but mehh could be i suppose. My valves definately were out of adjustment though, and the past 2wks its been getting worse and worse.

 
Rep Power: 0

I know this is going to sound real stupid but my b7 started doing the same thing yours is doing now. and i wasnt pulling a code. but check your cat i snaped mine off at the down pipe and it started running perfect after that. granted i replaced the entire exhaust system before it ran right

 
Rep Power: 0

cats already hollowed. I found out what the deal was. Ya know when u keep replacing crap and you dont back track to see if anything youve replaced is worth a crap? Well i know my dizz was an initial problem before, but it had fouled my new plugs and wires. Also we bumped my dizz a tad bit and it smoothed out alot. So i guess i was on the right track to begin with i just didnt back track my work at all. wire leaks were so bad that when i touched the boot even it shocked the **** outta me. Its fine now though, still a lil rich but ima put new ngks in today and sea foam the system and see if it helps. thx for all the help guys

 
Rep Power: 0

i know the feeling ive replace the tb map ips tested the iacv checked the vacume lines checked the intake welds and still cant figure out y my car is still jumping idle someone told me to check the timing and the belts bad anyways so im replacing everything to see if it helps

 
Rep Power: 0

yea thatd be the first place id look. Check the dizzy timing as well

 
Rep Power: 0

Hey man my name is joe, im new the the honda scene, but im loving it over my pos cav, the past three days have been a nightmare, and from reading ur posts i feel ur pain im goin through the same **** to, i put new plugs wires, timing belt on and it still does the same thing, this all came out of no where, i was driving and i kicked it dowmn to passing gear now its running like its on three cylinders, someone told me to clean the iat so i did, and when i pulled the hose off on the far right water or some kind of fluid came out, i cleaned everything, put the sensor back on and now i have a no start condition it cranks but will not fire, the only thiong i messed with was the iat, im going nutz man ive worked on cars for a long time, but im like a fish outa water when it comes to hondas, message me back on here or send me a text man my cells 724 762 9354.

 
Rep Power: 196

Did you reconnect the connector after you reinstalled it. They tend to drop down the back of the engine and be forgotten when reinstalling the IAT.

 
Rep Power: 0

so i replace the o2 sensor on mine....still no change at all....im at a loss, if i dont fix it by next month im just gonna say f*** it and swap it.