In a message dated 6/23/2006 12:01:23 P.M. Eastern Standard Time, rob@xxxxxxxxxxx writes: Sounds like you have a dirty fuel filter, possibly from a bad tank of gas, to me. Try replacing it or at least drain it and inspect the sample for dirt as it is common for that to cause cold hesitation. BTW what's a "cold fart" >> Some people have a "cold start" or "hot start" problem. Mine starts fine cold. And even better when hot. But a minute after it starts, (right about when the idle speed regulator finishes doing its thing... and it is working, I checked...) it starts to fart around, stumbling, losing power, backfiring. When I take my foot off the gas, it smooths out for a few seconds, then farts around again. Acts flooded, I guess. Two or three minutes later, it straightens out, often abruptly enough to snap my head back from the acceleration. I replaced the fuel filter in December. Also the warm up regulator and thermotime switch. David Teitelbaum mentioned the frequency switch. I checked, and I notice that I don't hear it buzzing in either accessory position when I turn the key. I don't hear it when it's running, either. I did hear it for about three seconds after the engine stalled out. Seems to me I used to hear it when the engine was running, or for a few seconds when the key was turned. If it died, would it cause this? David suggested I check the fuses and lambda relay. How do I check the relay? I have a fuse tester. (The lambda probe is only about 4 thousand miles old.) Wayne A. Ernst vin 11174 Bridgeton, NJ [Non-text portions of this message have been removed] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/