Bad fuel injector = wasteful on gas?
I have a quick question cuz I have no idea what the answer is. Does a bad fuel injector waste gas or kills your gas mileage in any possible way?? Thanks in advance
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yes, it will hurt your mileage.
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I had a feeling, because that's the situation Im in...
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what is your mpg city/highway ?
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you can check the resistances on the injectors to see if they are about to go.
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yes like he ^^ said, check the resistance with a multimeter. should be 10-14 ohms per injector.
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I just replaced all 6 injectors and now the car is idling rough and mixture is too rich... :(
I've reset the ecu by turning that nob all the way clockwise and then counter clockwise. any ideas? |
If this engine has "O" rings around the injectors, did you replace the "O" rings and lube them with petroleum jelly? It's easy to damage these seals and have them leak. If you pull the plugs when the engine is cold, are they wet with gas?
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Originally Posted by MAXIMUS G EKSUS
what is your mpg city/highway ?
I know my injectors are messed up because I already had them checked out by multiple places and they all said the same |
Originally Posted by 92 Max
If this engine has "O" rings around the injectors, did you replace the "O" rings and lube them with petroleum jelly? It's easy to damage these seals and have them leak. If you pull the plugs when the engine is cold, are they wet with gas?
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Originally Posted by e46mike
ya i replaced the rubber O rings. I didn't lube them...probably should have done that. I pull the plugs when the engine is cold and are wet with gas.
From reading other info on the net, these "O" ring seals are very prone to problems when replaced. |
don't mean to diss brian in anyway.... yup yup I know he's gonna start nagging at me for this post. he's gonna try to convince us his 6 new bosh injectors worth $600 :chairshot lol when in fact for $600 bucks you get a new jap engine with water pump, injectors, maybe alternator too.... under lesser than 60K lol
anyway, if you guys wanted to save $$$ on rebuilding your injectors, instead of buying rebuilt injectors you could have them clean out by professional. it's the same process that your rebuilt manufacturer used and it's much cheaper. I think I'd paid around $60 for all 6 when I did mine last time. And of course, I assumed you guys had your injectors' resistance tested ok. http://web.syr.edu/~bvtran/injectors.pdf check it out.... sorry, I did it 3 years ago when I lived in SC and never had the time to write up all the instructions. If you guys are curious about doing injector works in anyway, rebuilding it, or simply looking to clean up carbon build-up from the trottle and intake. check it out those photos to gain your intuitions. |
Had the injectors cleaned at an local injector outfit. Still had problems with leaking "O" rings. The injectors were working perfectly before, but I decided to have them cleaned and pressed when I had them out for my VTC job. Should'a left well enough alone.
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ive never heard good things about replacing the injectors on these cars. everyone says they replace them and they start to miss! seems like the only fix is to buy a new VE or VQ and move on...mine are starting to go.
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it's not that tough to avoid damaging the o rings or make a tight seal. just apply a little oil around the entire ring (or rings for ve), set it in the rail, put the hold down peice on and screw each side a little at a time until the injector is fully seated.. the oil is the key, the injector will slide in place much easier and with less chance of damage.
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I had no luck with motor oil on the "O" ring. I was only able to seal it when I listened to someone here on Max.org and used petroleum jelly on the rings and fuel rail and carefully twisted the injectors into place. Seems that this is a well known problem. If you look at places on the web that sell these injectors I found several with disclaimers that usually initial failure of these injectors is usually due to damage to the seal when installing. Interesting that they made this disclaimer in the online catalogue.
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Originally Posted by 92 Max
I listened to someone here on Max.org and used petroleum jelly on the rings and fuel rail and carefully twisted the injectors into place.
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Originally Posted by Hectic
that could have been the source of the problem. it's a frickin tight fit and if you're sitting there trying to twist in down, you're causing a lot of friction, which might score the o-ring(s).
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cant beat the original dealership parts! Seems that was probably the main key. To bad dealership prices suck on everything
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What kind of fuel injector cleaner should I use. Is the best way to just dump the stuff from the can into the gass tank, or is there some other way it can be done to clean them bad boys.
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Originally Posted by bvtran
don't mean to diss brian in anyway.... yup yup I know he's gonna start nagging at me for this post. he's gonna try to convince us his 6 new bosh injectors worth $600 :chairshot lol when in fact for $600 bucks you get a new jap engine with water pump, injectors, maybe alternator too.... under lesser than 60K lol
anyway, if you guys wanted to save $$$ on rebuilding your injectors, instead of buying rebuilt injectors you could have them clean out by professional. it's the same process that your rebuilt manufacturer used and it's much cheaper. I think I'd paid around $60 for all 6 when I did mine last time. And of course, I assumed you guys had your injectors' resistance tested ok. http://web.syr.edu/~bvtran/injectors.pdf check it out.... sorry, I did it 3 years ago when I lived in SC and never had the time to write up all the instructions. If you guys are curious about doing injector works in anyway, rebuilding it, or simply looking to clean up carbon build-up from the trottle and intake. check it out those photos to gain your intuitions. |
Originally Posted by internetautomar
the reason the rebuilt injectors fail so often is because when they are cleaned the solution removes some of the coating from the injector windings which causes the corrosion and eventual failure of them.
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nah, I just talk to the rebuilders
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Would it be worth it to have a full tune up done on my car as opposed to trying to get the seals to seat properly myself?
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try yourself, it's usually cheaper, unless you REALLY screw something up
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