My dads integra is having some major problems. It was running fine for 10 months when we bought it. Today i drove his car and it starting having backfiring problems and acceleration problems. This is the same integra i have for sale.

Well when i was driving it, it loss acceleration big time and so i downshifted it and when i picked up speed again it started backfiring like a mother ****** at only 20 or so mph. So i stuck it in second and drove home. I dont know whats wrong with it. anything above 20mph is not one back fire but like a million times over and over. Also i smell something burning very faint smell but noticable though.

Can you guys my family at H-T help me with this, and help my dad as well. It cant be a small fuel injector i know that because we have plently feed thru the 720cc injectors and the oil and things have never got to lean or to rich. I give up i dont know whats going on. help me




Modified by B18modifier at 8:59 PM 10/9/2004

 

have you checked for CEL codes yet?

 

no i havent what are cel codes flame me if you want im new to these terms and things. Thanks for the response

 

he's asking if there are any check engine codes on the car, bring it to a shop and see what codes come up from the smog machine with the obdII connecter. is the check engine light on.

 

no the check light isnt on it just happened today..and for no apparent reason

 

there may be some codes on it, even though the light isn't on. im not totally sure that that could be, but i am fairly sure.

 

720 cc injectors?!?! Isn't that like HUGE???

My guess is that it's running SUPER rich. When my friend's H22 del Sol was running really rich, it would backfire alot. He could make it backfire at will just by opening and closing the throttle quickly when slowing down... it was funny watching the people in other lanes be startled by his loud@$$ backfires.

But yeah why are the injectors so massive? What kind of gas mileage is it getting? Have you checked the plugs lately to see if they're fouled? Carbon deposits and low gas mileage indicate a rich A/F mixture.

*edit* yeah Tony the Tiger's bad@$$ fully built N/A Integra was running 310 cc injectors on 12.2:1 compression and putting down almost 220 fwhp. Get those 720's out of there and quick.


Modified by PatrickGSR94 at 11:00 PM 10/3/2004

 

I'd look at your ignition system. I had an old Maxima that did the same thing when it needed new plugs, wires, cap / rotor.

 

check your injector clips. One of mine came undone just right and was just dumping fuel into one cylinder and it would backfire like a little bitch.

 

yeah will do thanks garados and brian and patrick, well i looked at the gauges and it wasent rich and wasent lean at all. This gsr isnt making no 230hp its making over 400hp at 16-17psi. pump gas 93 octane all the time. I will check the plugs too. The car i would say can go a good 250miles (normal driving, not pushing it or anything) on a full tank not bad at all.

 

Any more replies? please i need help from h-t family really bad.

 

check the cap/rotor, fuel filter, spark plug wires.. basic **** liek that.. i had a similar problem.. i replaced all the "tune up" parts and the car ran normal again.

 

thx i will how much will that run me money wise? Another new problem arise, did you have ur car running idle very wierd? Like when it was idleling i reved it just a little under about 4k and the engine felt like it was going to cut off everytime. And when i drove it the car started to shake like a crazy old man. It would go past 25mph AT ALL. everytime it went that high the car shook back and forth fast and i couldnt drive it more than 1 mile away from the house, fearing that i couldnt make it back, loss of acceleration badly. so many problems

 

Not to bust *****, but you have so much done to the car yet you ask questions that are so simple such as plugs and wires and such. And also, your dad drives a 400hp integra?! thats pimp. haha.

Anyways, ya, are you on stock ecu? cause stock ecu cant handle anything over 310cc injectors.

 

its not the fact that its simple stuff but I DO NOT KNOW WHATS CAUSING THIS ITS TOO THINGS: IGNITION SYSTEM OR FUEL SYSTEM and no the ecu is not stock.

 

did you check the force induction forum?

and to patrick... i believe the 720cc is okay... as long as you're tuned for the 720's, you will only be cycling what you will need. @ 16-17psi... and it's backfiring? did you build it yourself? what is the car tuned with?

 

Anyone else with the same exact problems? if so please post..

 

sometimes the same exact problem could be caused by 2 completely different things. Sorry I couldnt help. Its much harder to diagnose over the internet.

 

my started doing that after i changed the cap and rotor, maybe the rotor is loose? maybe the spark plug wires arent touching teh conductor? check iginition system. i gotta fix my ***** today to. check it ouit

 

dude....why don't you check your car before you start asking pointless questions?!? you're asking questions and everyone's answering them...why don't you make an effort to do as people have told you?

i'm going to assume that you BOUGHT the car as is and that you DID NOT build it because you would know what to look for right away. anyway;

what standalone unit are you running?
how old are the injectors?
what is your a/f at when it starts to misfire?
what color are your plugs and how often do you change them?
have you changed your fuel filter lately?
how often do you run race fuel?
is your pcv working correctly or are you running one?
is their oil/coolent in your cylinders?
what ignition system are you running?
have you checked your cap/rotor?
are your plug wires bad?


man there are tons of things to look for. anyone of these things plus other little things could cause backfiring issues. but i'm going to assume that since you haven't touched your car...it's more than likely a lean/rich issue or your ignition system. is your car running on a stock O2 still? is O2 feedback activated? or is it running on straight from a tunned map?

 

Are you sure your not detonating? Your original post happend to me exactly, and thats not backfiring, thats detonation bud!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18modifier &raquo;</TD></TR><TR><TD CLASS="quote">its not the fact that its simple stuff but I DO NOT KNOW WHATS CAUSING THIS ITS TOO THINGS: IGNITION SYSTEM OR FUEL SYSTEM and no the ecu is not stock.</TD></TR></TABLE>

It is because of the fact that you don't know simple stuff..... YOU DON'T EVEN KNOW WHAT CEL IS!!!! WTF!?!

Just get daddy to buy you a new car.

 

Milton i think you and me have the same problem. I did have my rotor and cap changed and then right after it did the same thing too. I will do what u say and see if it fixes it, thanks man. And shermanyang yes me my dad and uncle build the car. So stop assuming u i did check the car to see whats wrong. Shogun you can start talking once you get a car

what standalone unit are you running? (Aem ems system)
how old are the injectors? (1 year old bought them early 03, RC 720cc)
what is your a/f at when it starts to misfire? (its sorta in between rich and lean.)
what color are your plugs and how often do you change them? (i change them every 6-8 months i dont drive it alot.)
have you changed your fuel filter lately? (no this could be the problem so TY on this one.)
how often do you run race fuel? ( The car was at 17psi done without race gas but now its sitting at 12psi. )
is your pcv working correctly or are you running one? (yes its working correctly)
is their oil/coolent in your cylinders? ( No i just checked the other day)
what ignition system are you running? (the typical msd 6a ignition)
have you checked your cap/rotor? (Not yet but will get to it.)
are your plug wires bad? (No just replaced them about a week ago. Problem started about 3 days ago.)


Thanks for everyones HELPFULL responses, unlike other dumb idiots that can do nothing but critize. I appreciate the help and hopefully ill get it running good and strong again.


Modified by B18modifier at 10:24 PM 10/8/2004


Modified by B18modifier at 10:25 PM 10/8/2004