1992-Astro Van-Service Engine soon lamp goes on for a few minutes and then off-reasons?
could be o2 sensors switching irregularly
1. Idle 1.5 minutes 2. Drive, AC on, OD on, engine 1400-1600: 3 minutes 3. Drive 50-65mph, engine 1600-2000: 1.5 minutes End ERG test 4. Idle 10 minutes, ignition key off for 10 seconds 5. Drive 50-60mph, OD off, engine over 3000: 3 minutes 6. Drive 53-58mph, AC on, OD on, engine 1800-2100, cruise control ok: 3 minutes 7. OD off, release accelerator 5 seconds, idle 1 minute 8. AC off, 2nd gear, engine 3000…
Your Mystiques loses power and the engine bucks and dies after traveling for an hour at 60mph after stopping and waiting 2 minutes the engine starts and run for another 30 minutes or so any ideas?
get your engine hot for 5 minutes, while running slowly pour it down the carb till the engine stops. (using about half a can) wait 10 min, start engine, it will be hard to start. run it at about 1000 rpm for 3 minutes till all black smoke clears. turn off engine, rinse repeat till no longer seeing black smoke