Failed Fuel Injectors

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08-01-2006, 01:08 PM

max_pusher

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Failed Fuel Injectors

Hello,

My car started to run really rough. I checked for codes and found codes 33 and 51 (O2 sensor and fuel injector). I pulled the ignition wires out one at a time while the car was running and found that their was no noticable change when pulling wire 5 out.

Where is a good place to purchase fuel injectors for a 91? I have never replaced fuel injectors before, is their anything I should look out for before starting performing this fix?

Thanks for your time. I would appreciate any suggestions or opinions.

08-01-2006, 01:16 PM

internetautomar

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08-01-2006, 01:45 PM

Greeny

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I have a set of 6 used injectors still in the rail for sale if your interested..

08-01-2006, 01:52 PM

89blackse

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^^ You two crack me up

Never done it before but...

http://forums.maxima.org/showthread.php?t=481918

May help if you buy just the replacement injector(s)

08-01-2006, 04:51 PM

internetautomar

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well he has the 2 options.
Brand new or Used.
the choice is his.

08-01-2006, 06:32 PM

max_pusher

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Thanks for your replies.

I went out and checked the resistance of the fuel injectors on 1, 3, and 5 cylinder and found it all to be open. When I took the terminals off, they were heavily corroded. I cleaned the terminals and put everything back together. Then I started the car, and it is running worse than before.

I tried taking the ignition wires out one at a time and 1, 3, and 5 cylinders and their is no change.

Could it be that all 3 injectors are bad now? The car has about 233,000 miles on it.

08-02-2006, 01:54 AM

Alex_V

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Quote:

Originally Posted by internetautomar

well he has the 2 options.
Brand new or Used.
the choice is his.

One thing to add, is reman injectors never last. So if your keeping the car get new or known good used ones. If your selling, and you dont care, get remans.

~Alex

08-02-2006, 03:51 AM

internetautomar

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Quote:

Originally Posted by Alex_V

One thing to add, is reman injectors never last. So if your keeping the car get new or known good used ones. If your selling, and you dont care, get remans.

~Alex

even then don't get remans/rebuilts, unless you like doing labor multiple times. I've seen them fail moments after being installed.

08-02-2006, 02:44 PM

max_pusher

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Okay,

I checked the resistance on all the fuel injectors and only one has a resistance of 14 ohms. All the others are open. Does this make sense? Could all the injectors start to fail at one time. It seems too much of a coincidence

08-02-2006, 03:29 PM

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internetautomar

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actually they usually fail within a short time of one another, sounds like you got lucky.
BTW if your car is running then you read the injectors wrong.

08-02-2006, 03:32 PM

#11

colinnwn

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Well I can tell you what happened to me. Car started running crappy. Sent to mechanic who said #4 injector needed replacing. I decided to do it myself. #4 showed open along with #6, #2 @ 40 ohms. #5 @18 ohms, #1 and #3 @14 ohms. Replaced first 3. Getting ready to reinstall fuel rail, rechecked resistance. #5 now showing open, so I had to order another injector.

Did you carefully scrape away the corrosion on the injector terminals (and not just the plug terminals) before testing them? Even a little corrosion can wildly affect the resistance measurement.

I support (and generally give) my business to members of the forum (eg. InternetAutomar and Kaleb from Courtesy Nissan). But, the car is worth less than $500, so I looked for as cheap as I could get for new injectors.

Parts America has supposedly new Beck-Arnley injectors for your car for $57 plus $9 core and free shipping. I would plan on eating the core charge, because I was unable to get the injectors out of my 1990 without destroying the top of the injector with channel locks.

I say "supposedly new" because the injector bodies have a hand etched number on them. The Parts America website said new, they came sealed in a Beck-Arnley box, and I don't have a reason to doubt them. But that is a little wierd for a "new" part. If they are not, $66 is lower than the going rate for even reman injectors.

08-02-2006, 03:41 PM

#12

internetautomar

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Quote:

Originally Posted by colinnwn

Well I can tell you what happened to me. Car started running crappy. Sent to mechanic who said #4 injector needed replacing. I decided to do it myself. #4 showed open along with #6, #2 @ 40 ohms. #5 @18 ohms, #1 and #3 @14 ohms. Replaced first 3. Getting ready to reinstall fuel rail, rechecked resistance. #5 now showing open, so I had to order another injector.

Did you carefully scrape away the corrosion on the injector terminals before testing them? Even a little corrosion can wildly affect the resistance measurement.

I support (and generally give) my business to members of the forum (eg. InternetAutomar and Kaleb from Courtesy Nissan). But, the car is worth less than $500, so I looked for as cheap as I could get for new injectors.

Parts America has supposedly new Beck-Arnley injectors for your car for $57 plus $9 core and free shipping. I would plan on eating the core charge, because I was unable to get the injectors out of my 1990 without destroying the top of the injector with channel locks.

I say "supposedly new" because the injector bodies have a hand etched number on them. The Parts America website said new, they came sealed in a Beck-Arnley box, and I don't have a reason to doubt them. But that is a little wierd for a "new" part. If they are not, $66 is lower than the going rate for even reman injectors.

hand etched= rebuilt= worse than used = do the job more than once.
I put rebuilts in my first VE and by the time it was all said and done I had replaced 7 injectors and 1 cylinder was never changed.

08-03-2006, 07:52 PM

#13

generation3

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I had 5 injectors bad on me. Replaced all six thank you Brian. Did you get the order yet from my friend Dennis? You're getting a lot of business from Dallas area it seems. colinnwn I have some left over injectors if you want them.