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Great. Just make sure to follow the procedure exactly. On the second cooldown, it's preferable to let the car sit overnight. Two hrs HAS worked for me but may not under all conditions of ambient and engine temps. If you have any questions shoot me a PM.
SUCCESS!!!! Thanks to everyone who pitched in here with ideas and expertise.
I tried a drive cycle again today using Jay777's suggested approach above:
Here's what I did:
(1) Cold Start
(2) Got on Freeway and drive at 60mph in 6th gear (keeping it just above 2000 RPM). At about the 11 minute mark (11 miles) I got 2 beeps from my Altel OBD scanner and ALL the flags had gone GREEN (see pic). Fantastic!!
I don't know if somehow the OBD computer had "counted" my 1st drive cycle attempt (2 days ago).
For anyone who wants the info, my 993 C4S has a Manufactured Date of 9/96 but the VIN has a "V" for Porsche year 1997.
SUCCESS!!!! Thanks to everyone who pitched in here with ideas and expertise.
I tried a drive cycle again today using Jay777's suggested approach above:
Here's what I did:
(1) Cold Start
(2) Got on Freeway and drive at 60mph in 6th gear (keeping it just above 2000 RPM). At about the 11 minute mark (11 miles) I got 2 beeps from my Altel OBD scanner and ALL the flags had gone GREEN (see pic). Fantastic!!
I don't know if somehow the OBD computer had "counted" my 1st drive cycle attempt (2 days ago).
For anyone who wants the info, my 993 C4S has a Manufactured Date of 9/96 but the VIN has a "V" for Porsche year 1997.
Thanks again to all!!!
Little Runner
I don't know if somehow the OBD computer had "counted" my 1st drive cycle attempt (2 days ago).
That's likely what occurred, i.e. two trips with a cold start in between.
09-02-2019, 12:07 PM
