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98 v70 GLT ECU "not ready". Can't pass inspection

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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timmybdaddyof3
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Re: 98 v70 GLT ECU "not ready". Can't pass inspection

Post by timmybdaddyof3 »

as to the "alt air" - secondary air injection system

TRuck
Posts: 108
Joined: 22 January 2011
Year and Model: '98 v70 GLT T-bo
Location: Brooklyn, NY

Post by TRuck »

yes, right, sorry...2cndary air.

So, did a third lap the best I could tonight. No success. Still not ready.

Stupid idea but here goes; If I disconnect the battery (then re-connect) could it potentially/possibly reset the prior reset (erasing of codes)? or is that going to just set me back 500 miles?... Or would it have any effect at all? Just shooting in the dark here.

thanks all
'98 V70 (T), 265k miles
what doesn't kill us makes us... bitter.

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abscate
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Post by abscate »

It sets you back 500 miles.
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TRuck
Posts: 108
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Year and Model: '98 v70 GLT T-bo
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Post by TRuck »

crud
'98 V70 (T), 265k miles
what doesn't kill us makes us... bitter.

TRuck
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Year and Model: '98 v70 GLT T-bo
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Post by TRuck »

update:
3 weeks later, and a couple hundred miles more...trying to drive it a little everyday.....no change.
'98 V70 (T), 265k miles
what doesn't kill us makes us... bitter.

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rspi
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Post by rspi »

A buddy of mine hooked his '98 up to a battery and took the car to smog. Of course it failed almost every level. So he and the guy was shooting the breeze while the guy tested and fixed the gas cap. About 10 minutes had gone by with the car still hooked up to the machine via the OBD2 PORT. They went back and checked the machine and ALL reports were READY and passed (the car was running the entire time).

So, if the car fails, have them let it sit idle on the machine a few minutes and see if that causes things to post ready and pass.

I recently purchased a '98 GLT that had not been run for about 3 years. Replaced the head, tossed a battery in it, drove it for about 100 miles, sold it, and the guy took it to smog the next day and it passed. I don't think they ever cut the car off to smog it.
'95 855 T-5R M, Panther - 22/28 mpg, 546,000 miles
'95 955 T-5R Yellow Wagon, Lemonade, 180,000 miles
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Volvo's of past: '87 740 GLE, '79 262C Bertone, '78 264, 960's, '98 S70 GLT, '95 850 T-5R YellowVolvo Repair Videos

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abscate
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Post by abscate »

Robert...I'll bet some money changed hands...I don't think an evap cycle will clear in ten minutes
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JRL
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Post by JRL »

Whatever you do, don't do that
Mod note. Jim passed away in early 2022, his contributions to this forum are immortal, and he is missed. RIP

2000 V70R Black, 144,000 miles Wife's R.
2007 V70 2.5T White/Oak 111,000 MILES. Polestar tune, IPD bars, rear spoiler, dark grey Thors, DWS 06, HU850, sub.

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rspi
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Post by rspi »

LOL, I'm just telling you guys what I was told 3 days ago. I still have the text messages on my phone explaining what happened.
'95 855 T-5R M, Panther - 22/28 mpg, 546,000 miles
'95 955 T-5R Yellow Wagon, Lemonade, 180,000 miles
--------------------
Volvo's of past: '87 740 GLE, '79 262C Bertone, '78 264, 960's, '98 S70 GLT, '95 850 T-5R YellowVolvo Repair Videos

rmmagow
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Post by rmmagow »

My 98 AWD, basically same engine/ECU takes 2~3000 miles before all the indicators go ready. It's nuts. I did get it to go ready via the drive cycle once last year, but have not been able to get it to set like that again. The odd thing I have had happen was last month I still had "NO CODES" but NOT READY for all the OBD things. I accelerated very hard with a cold engine and triggered a flashing mis-fire code. When I hooked up the scanner to clear that code I checked readiness and EVERYTHING was in a ready state ?????
Very confusing. I reset the CEL from the misfire and of course all went NOT READY again. I tried an experiment (unplugged MAF) to see if I could get it to go ready by triggering a real fault but that didn't work. I haven't tried to invoke a mis-fire again though and am not sure I can. I have always had issues getting readiness in this car. It had been suggested to me that my O2 sensor maybe should be changed because it is very old and yes, it does seem to not fluctuate as quickly as others I have observed.
This is all anecdotal I realize, but the 98's are know to be very difficult to get readiness set even after months of "NO CODES". I have no solution other than a well placed $50.00 bill.
1998 V70 AWD 228K - Daily Driver
1985 Mercedes Benz 300D - 197K Off Road For Now Brakes Failed
1998 S70 135K - FOR SALE
2003 GMC Sonoma - 114K - POS
1958 Mercedes Benz 220S 66K Original and never to be restored.
2006 Saturn ION 5-Speed - 150K Son's weird little easy to fix car

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