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O2 sensor? DI? Can OBDII show DI faults? 97 Aero is ... Posted by John Fitzgerald [Email] ![]() ![]() ![]() |
beginning to run rough at idle, especially when cold. It also died yesterday after the first start, something it's only ever done once 40k miles ago (and that was fixed by replacing the fuel pump relay -bosch 0-332-209-159- the Trionic 'pump priming cycle' wasn't running, but I could hear this wasn't happening in the garage). Sometimes, I feel a hesitation under mild boost when going through the 2000 to 2300 rpm range in 2nd, 3rd, or 4th gear. Seems to be doing this whether hot or cold.
I've made not recent changes to the car. 79k miles right now.
Plugs are NGK BCPR7ES .89mm gap, and have 3000 miles, fuel filter - new at 60k service, air filter is K & N - new at 60k service, exhaust is a Fox high flow stainless, new two months ago (cat back).
posted by 209.242.236...
_______________________________________ 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
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