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Struggling with my '99 Viggen....Please HELP! (long) Posted by Todd [Email] (#958) [Profile/Gallery] (more from Todd) on Tue, 22 Aug 2006 09:17:16 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Viggen Problems:
•Last week:
-CEL while at a stop light & went off in approx 2 days but during that time the car hiccupped/missed/bucked in 5th gear at 2K RPM twice
•This week:
-hiccupped/missed/bucked under 3K typically during light acceleration at approx 2500 RPM
-CEL P0133 Slow responding front O2 sensor: reset CEL
-Replaced DI Cassette and Vac lines
-Removed SMBC
-Swapped BPC/MAF/(part w/3 vac lines attached on lip below hood gasket near firewall: sorry I don’t know the part name)
-Still hiccupped/missed/bucked
-Put in old plugs and ran perfect for 20 min until I stopped and then car bogged down, could not hold RPMs and triggered CEL
-P0133 O2 sensor CKT slow response Bank 1 Sensor 1
-Sealed exhaust joint between O2 sensors with high temp silicone
-Tightened downpipe to turbo flange
-Changed gas stations and put in Techron Concentrate
-Cleaned O2 Sensor sockets
-Checked resistance between neg battery cable and block
-Car drove fine (90% confident since it think it did it but could not be sure)
-Put New plugs back in
-hiccupped/missed/bucked once
-Next day drove to work
-hiccupped/missed/bucked once on way to work
-hiccupped/missed/bucked 4-5 time on way home
-All hiccupping/missing/bucking events are under light to moderate throttle
-Changed back to old plugs
-Cleaned injector electrical plugs
-Car ran great until I tried a wide open throttle run and it bucked around 4K RPM
Overall the car idles perfect, runs perfect besides for this hiccupping/missing/bucking issue that only occurs here and there. To date the only CEL that the car has thrown is the P0133.
Currently there are 87K miles and the only engine related mods are a K&N filter and JT 3" turbo back exhaust. Any help would be greatly appreciated. Thanks!!!
posted by 129.139.156...
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