 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Car Forum / Pontiac / Pontiac Cars / September 2005O2 Sensor
1988 Pontiac 6000 2.5L L4 123600 miles Went to drive to school today and almost didn't make it to school. Halfway there, the car started losing horsepower and started slowing down. (Flooring it made no difference in the RPM) SES light came on shortly after. About pulled over when it suddenly all came back. Got to school and checked the codes and they were the same saying that I had problems with my Oxygen sensor. Dad said that it could possibly be the ECM or a bad oxygen sensor connector or fuel pump or EGR valve, but he said that we'll go ahead and replace the Oxygen sensor because that is what it was reporting. Cost me $30. Test drove it tonight and it ran smooth and felt like it had more power. (Although I could be imagining.) I guess we'll find out in a few days if this actually solved the problem as the SES light came on sometimes and not others. What do you think? Could the oxygen sensor cause me to lose lots of power from my engine? (By the way - took Dad less than 5 minutes to install the oxygen sensor.) > 1988 Pontiac 6000 2.5L L4 123600 miles > Went to drive to school today and almost didn't make it to school. Halfway [quoted text clipped - 11 lines] > lose lots of power from my engine? (By the way - took Dad less than 5 > minutes to install the oxygen sensor.) It's possible that the engine was running very rich and the cat clogged up, melted down, and broke into little bits. "« Paul »" <"=?x-user-defined?Q?=AB?= Paul =?x-user-defined?Q?=BB?="@houston.rr.com> wrote in message news:4338B88A.3B8FB136@houston.rr.com... >> 1988 Pontiac 6000 2.5L L4 123600 miles >> Went to drive to school today and almost didn't make it to school. [quoted text clipped - 22 lines] > It's possible that the engine was running very rich and the cat > clogged up, melted down, and broke into little bits. Even if this would be possible, could this happen when the car was only running for five minutes (if even that)? > > It's possible that the engine was running very rich and the cat > > clogged up, melted down, and broke into little bits. > Even if this would be possible, could this happen when the car was only > running for five minutes (if even that)? Yes. 0.2 is too low. The O2 sensor was shot and telling the ecu to dump raw fuel into the engine. Partially burned fuel hits the cat melting it down and clogging the exhaust causing steadily decreasing power. It is a classic bad 02 senario. The cat has probably been going bad for weeks. If it started running good again its because there is not much left inside the cat now. "« Paul »" <"=?x-user-defined?Q?=AB?= Paul =?x-user-defined?Q?=BB?="@houston.rr.com> wrote in message news:4338B88A.3B8FB136@houston.rr.com... >> 1988 Pontiac 6000 2.5L L4 123600 miles >> Went to drive to school today and almost didn't make it to school. [quoted text clipped - 22 lines] > It's possible that the engine was running very rich and the cat > clogged up, melted down, and broke into little bits. Secondly, I forgot that I should have mentioned that according to the codes, they say that it's running lean, not rich and the voltage for the O2 sensor was low (below .2 volt). Not too high. >"« Paul »" <"=?x-user-defined?Q?=AB?= Paul >=?x-user-defined?Q?=BB?="@houston.rr.com> wrote in message [quoted text clipped - 29 lines] >they say that it's running lean, not rich and the voltage for the O2 sensor >was low (below .2 volt). Not too high. Travis, But that is the point: if the O2 sensor failed and was telling the ECM that the car was running lean when it was not, the ECM would INCREASE the fuel to the engine, and make in fact run rich even if the O2 sensor said otherwise. This would give the effect you mentioned while driving to school. I doubt a short time running in this condition would have detonated the converter, but it might be smart to have the converter checked before your next smog check is due - might save you a nasty suprise. Regards, Bill Bowen Sacramento, CA >>"« Paul »" <"=?x-user-defined?Q?=AB?= Paul >>=?x-user-defined?Q?=BB?="@houston.rr.com> wrote in message [quoted text clipped - 51 lines] > Bill Bowen > Sacramento, CA We don't have smog tests in Iowa. But I understand now. |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.