01-14-2023, 06:07 AM
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#11 |
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Join Date: Jan 2020
Location: Los Angeles, CA
Posts: 44
Vehicle: 1986.5 Nissan D21 2WD
Thanks: 5
Thanked 4 Times in 4 Posts
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I'm leaning towards the primary O2 sensor. Had this happen on my 04 Civic and replaced with a Denso one. Secondary one is still running good. Roughly have 40,000 on the new one and haven't had a problem yet.
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| Thanked by: | 89'HBV6 (01-14-2023) |
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01-14-2023, 08:13 PM
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#12 | ||
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Ol'school Geek
Join Date: Mar 2020
Location: Washington State / the Left Coast
Posts: 2,051
Vehicle: 89' D21 KC SE V6 5spd 2WD - 87' D21 KC SE V6 5spd 2WD
Thanks: 1,600
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Quote:
 Are you talking the first one on the cat? Right? I know there are 2, I've seen them both. Is there any other O2 sensor(s) I don't know about?
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 . . . Factory Service Manuals: https://www.nicoclub.com/nissan-service-manualsQuote:
-"No electrons were harmed during the creation, transmission or reading of this posting. However, many were excited and some may have enjoyed the experience." |
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01-14-2023, 10:20 PM
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#13 | |
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Join Date: Jan 2020
Location: Los Angeles, CA
Posts: 44
Vehicle: 1986.5 Nissan D21 2WD
Thanks: 5
Thanked 4 Times in 4 Posts
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Quote:
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01-14-2023, 10:24 PM
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#14 | |
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Ol'school Geek
Join Date: Mar 2020
Location: Washington State / the Left Coast
Posts: 2,051
Vehicle: 89' D21 KC SE V6 5spd 2WD - 87' D21 KC SE V6 5spd 2WD
Thanks: 1,600
Thanked 462 Times in 424 Posts
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10-4...
__________________
. . . Factory Service Manuals: https://www.nicoclub.com/nissan-service-manualsQuote:
-"No electrons were harmed during the creation, transmission or reading of this posting. However, many were excited and some may have enjoyed the experience." |
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01-24-2023, 06:16 PM
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#15 |
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diosmuertos
Join Date: Jun 2021
Location: WI
Age: 28
Posts: 142
Vehicle: 1988 D21 VG30i
Thanks: 108
Thanked 26 Times in 24 Posts
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Does the fsm have instructions on testing the o2(s) with a multimeter?
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01-24-2023, 06:47 PM
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#16 | |
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Ol'school Geek
Join Date: Mar 2020
Location: Washington State / the Left Coast
Posts: 2,051
Vehicle: 89' D21 KC SE V6 5spd 2WD - 87' D21 KC SE V6 5spd 2WD
Thanks: 1,600
Thanked 462 Times in 424 Posts
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Could not tell you... have an appt with my mech on Thurs. Checking fuel pressure and replacing the upstream O2. I suspect the current sensor is nasty, in that cat. I'll get a PIC on Thursday... Currently working on tank #2 with FI cleaner.
This is the wife's daily driver, I just reset it when it codes and hope to keep it running for another year or 2, till we can afford to replace it. But it still gets the best MPG of anything with 4 wheels, on our property. Just can't beat the 50+ I get on the KZ...
__________________
. . . Factory Service Manuals: https://www.nicoclub.com/nissan-service-manualsQuote:
-"No electrons were harmed during the creation, transmission or reading of this posting. However, many were excited and some may have enjoyed the experience." |
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| Thanked by: | diosmuertos (01-24-2023) |
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01-25-2023, 04:39 AM
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#17 | |
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diosmuertos
Join Date: Jun 2021
Location: WI
Age: 28
Posts: 142
Vehicle: 1988 D21 VG30i
Thanks: 108
Thanked 26 Times in 24 Posts
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Quote:
I feel you on two wheeler supremacy, I have a little cb350 I’ve been slow rolling on that is finally “sorted” enough to commute on and it’s been great. |
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| Thanked by: | 89'HBV6 (01-26-2023) |
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01-26-2023, 01:05 AM
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#18 | |
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Ol'school Geek
Join Date: Mar 2020
Location: Washington State / the Left Coast
Posts: 2,051
Vehicle: 89' D21 KC SE V6 5spd 2WD - 87' D21 KC SE V6 5spd 2WD
Thanks: 1,600
Thanked 462 Times in 424 Posts
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I found a good mech... but we've talked and he doesn't want to touch the D21. He already had a bad (previous) experience...
Yes, informed is always a good thing. This is the reason I refuse to take this car back to a dealer. The car is only worth ~$3k... but gets decent mileage. The wife wants another Subie. <sigh>
__________________
. . . Factory Service Manuals: https://www.nicoclub.com/nissan-service-manualsQuote:
-"No electrons were harmed during the creation, transmission or reading of this posting. However, many were excited and some may have enjoyed the experience." |
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01-28-2023, 04:59 AM
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#19 | |
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Ol'school Geek
Join Date: Mar 2020
Location: Washington State / the Left Coast
Posts: 2,051
Vehicle: 89' D21 KC SE V6 5spd 2WD - 87' D21 KC SE V6 5spd 2WD
Thanks: 1,600
Thanked 462 Times in 424 Posts
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OK, replaced the O2 sensor... think the old one (14 years!) got hot?
 3.6ohms on the old one, 3.0 on the new one. Noted to be a weak point on this car... I'll know more this week, once the car gets driven.
__________________
. . . Factory Service Manuals: https://www.nicoclub.com/nissan-service-manualsQuote:
-"No electrons were harmed during the creation, transmission or reading of this posting. However, many were excited and some may have enjoyed the experience." Last edited by 89'HBV6; 01-28-2023 at 05:19 AM. |
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01-28-2023, 09:57 AM
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#20 |
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Join Date: Dec 2019
Location: Where I can see the air I breathe...
Posts: 1,094
Vehicle: 1997 XE King Cab with 3 pedals, KA24E & 2WD, Y’all
Thanks: 109
Thanked 343 Times in 280 Posts
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Good find!
Hope this fixes the issue. It does look like it got hot and melted some of the element off of it.
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