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Welcome to the world of 9k.
I've had at least one CEL on our reliable 97 Aero for the past six years. Replaced both O2 sensors during the course of normal mx, about six months apart, at approx 140,000 mi. Within a few months of the second sensor replacement, both were Bosch universal kit, btw, the O2 CELs began coming on again. As the car ran perfectly fine, mileage was unchanged, I decided to live with it. Certainly didn't want to consider a down pipe/ cat ...
The coolant temp gauge on the 97 Aero has always been lower than our other 9000's. one of the links someone else posted goes to an Ari response mentioning the same thing: 7:30 is the clock position for the 97 Aero. We have a 98 CSE that stays at 8:30-8:45; my sons 95 Aero is that way, too.
I began to get an intermittent coolant temp sensor code last year, at 230,000 mi. During a massive cooling system overhaul last winter (radiator, hoses, water pump, t-stat) I replaced both coolant temp sensors: the one between the intake runners (for the ECU) and the one on the trans side of the head (for the gauge and rad fans). The code persists, the temp gauge is unchanged. Part of my motivation in replacing both sensors was chasing a drop in mpg, since remedied by a new fuel pressure regulator.
So, the ground strap may be worth looking at. The fuse 28 is easy to try. But if neither one helps, the CEL codes may just be a part of driving a "near vintage" Saab. In fact, when we bought the used CSE last winter, I had fun staring at a "blank" EDU, even turning it off at night (the prelude to the Night Panel?) once in a while.
Sincerely,
John
Burlington, Wisc
'73 96 RHD sold after four years in Middle Barton, Oxfordshire, UK
'80 99 sold after 20 years/192,000mi
'86 9kT sold after 12 years/approx 121,000 mi
'87 9kT sold after 9 years/approx 174,000 mi
'97 CSE given to my son after 8 years @ 245k; he sold it at 254k mi
still driving:
'97 Aero 244,xxx mi
'98 CSE 194,xxx mi 'project car' for winter & for my daughters to drive
and a couple of 'non-Saabs':
'01 Suburban 141,xxx mi
'03 BMW 330 Cic 55,xxx mi
_______________________________________
John
Burlington, Wisc
'73 96 RHD sold after four years in Middle Barton, Oxfordshire, UK
'80 99 bought new, sold after 20 years/192,000mi
'86 9kT picked up at Trollhatten, sold after 12 years/approx 121,000 mi
'87 9kT sold after 9 years/approx 174,000 mi
'94 CSE given to my son after 8 years @ 245k; he sold it at 254k mi
'95 Aero 146,xxx mi sold
'98 CSE 248,xxx mi gave it away
'97 Aero 317,xxx mi my daughter’s school car … gave away [we put 300k mi on it]
still driving:
'97 CSE 170xxx mi 'project car' for myself and my daughters to drive
'07 9-3 2.0T 240xxx
'08 9-5 191xxx mi my wife's daily driver
and a couple of 'non-Saabs':
'01 Suburban 201,xxx mi
'03 BMW 330 Cic 84,xxx mi
'14 Mercedes E350 103,xxx mi
Posts in this Thread:
- Replaced O2 & temp sensors, error codes persist, JerseySaab , Sat, 17 Aug 2013 08:12:07
- Re: Replaced O2 & temp sensors, error codes persist, sam96CS , Mon, 19 Aug 2013 18:32:44
- Guess I'm getting too blasé about these CELs, John Fitzgerald , Mon, 19 Aug 2013 13:40:44 <-- Viewing This Message
- Re: Replaced O2 & temp sensors, error codes persist, Bill Homer , Sat, 17 Aug 2013 08:56:09
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