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Old 10-07-2009   #1
90ZRJR1
 
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Cool o2 sensor code 45

I have a 90 ZR1 with a slight misfire,and an OBD code 45 {left oxygen sensor}.Can it be just a bad o2 sensor or is there something else giving me the code? Any suggestions?
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Old 10-07-2009   #2
Jeffvette
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Default Re: o2 sensor code 45

Possible leaking injector.
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Old 10-07-2009   #3
90ZRJR1
 
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Cool Re: o2 sensor code 45

Thanks,I'll check it out. Is that possible with only 4000 original miles on the car?
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Old 10-07-2009   #4
ZZZZZR1
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Default Re: o2 sensor code 45

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Originally Posted by 90ZRJR1 View Post
Thanks,I'll check it out. Is that possible with only 4000 original miles on the car?
100% if you haven't changed the injectors. Are they original injectors?
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Old 10-07-2009   #5
90ZRJR1
 
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Thumbs up Re: o2 sensor code 45

Yes,they are original. So is everything else on the car ,including the tires!
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Old 10-07-2009   #6
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Default Re: o2 sensor code 45

The original Multec fuel injectors are sensitive to the ethanol in today's gasoline.
There has been a near 100% failure rate on these.

Your choices are:
$$$$ RC Injectors
$$ Accell
$ FIC's rebuilt MSDs

TomC
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Old 10-07-2009   #7
90ZRJR1
 
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Thumbs up Re: o2 sensor code 45

Thanks guys,Ill look into new fuel injectors.
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Old 10-08-2009   #8
VetteMed
 
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Default Re: o2 sensor code 45

Quote:
Originally Posted by tccrab View Post
The original Multec fuel injectors are sensitive to the ethanol in today's gasoline.
There has been a near 100% failure rate on these.

Your choices are:
$$$$ RC Injectors
$$ Accell
$ FIC's rebuilt MSDs

TomC
"Crabs"
FWIW, my FICs appear to be brand-new Bosch injectors.
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Old 10-08-2009   #9
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Default Re: o2 sensor code 45

Quote:
Originally Posted by VetteMed View Post
FWIW, my FICs appear to be brand-new Bosch injectors.
I got a set from Jon last December and installed them in April. I was under the impression, at least the set I bought, to be reconditioned (as opposed to rebuilt) Bosch units.
Nonetheless, for $365 for all 16 was affordable and my 94 has never run this good!
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