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- Newsgroups: rec.autos.tech
- Path: sparky!uunet!snorkelwacker.mit.edu!tamsun.tamu.edu!inetg1!ericc
- From: ericc@Arco.COM (Chang Eric(214)754-3562)
- Subject: One idle problem solved, one remains
- Message-ID: <1992Nov16.141722.21225@Arco.COM>
- Organization: ARCO Oil and Gas Company
- Distribution: usa
- Date: Mon, 16 Nov 1992 14:17:22 GMT
- Lines: 227
-
- I finally repaired that unpleasant problem that I asked for help on the net
- some time ago. (It was sufficiently complicated such that no one was able to
- answer my post.) Recapping, the engine would not keep running under idle
- conditions. I suspected the idle control motor, but someone at work suggested
- that I look at the throttle position sensor first. His rationale was that the
- idle control motor never broke because of its design. The throttle position
- sensor, on the other hand, breaks easily. If it malfunctions, the engine
- control computer can read a full open throttle and open the EGR valve. If this
- occurs at idle, the broken vacuum kills the engine. Since the throttle
- position sensor is simply a potentiometer,t can get a dead spot at the position
- of greatest wear, that is, the idle position. So, I could temporarily repair
- the problem by just loosening it with a screwdriver, twisting it a degree or so,
- then tightening it. The dead spot moved to a different location.
-
- Now, however, I have another problem. I don't know where this problem is
- coming from. The car has a standard shift and sometimes (but only sometimes)
- when I coast to a stop from a long fast run, the engine dies. This sometimes
- happens when I get off the freeway, but it does not happen every time. In fact,
- if it happens once, it will usually not happen again in a day. Thus, it is
- very difficult to diagnose. In the past 3 weeks, it has happened 4 times. Not
- enough to repeat it, but enough to find it annoying. No matter how I try, I
- cannot duplicate it immediately afterwards. Could it be the dashpot? Too
- simple? Thanks. Eric
-
- Newsgroups: rec.autos.tech
- Subject: idle problem solved, new problem
- Distribution: usa
- Organization: ARCO Oil and Gas Company
-
- I finally repaired that unpleasant problem that I asked for help on the net
- some time ago. (It was sufficiently complicated such that no one was able to
- answer my post.) Recapping, the engine would not keep running under idle
- conditions. I suspected the idle control motor, but someone at work suggested
- that I look at the throttle position sensor first. His rationale was that the
- idle control motor never broke because of its design. The throttle position
- sensor, on the other hand, breaks easily. If it malfunctions, the engine
- control computer can read a full open throttle and open the EGR valve. If this
- occurs at idle, the broken vacuum kills the engine. Since the throttle
- position sensor is simply a potentiometer,t can get a dead spot at the position
- of greatest wear, that is, the idle position. So, I could temporarily repair
- the problem by just loosening it with a screwdriver, twisting it a degree or so,
- then tightening it. The dead spot moved to a different location.
-
- Now, however, I have another problem. I don't know where this problem is
- coming from. The car has a standard shift and sometimes (but only sometimes)
- when I coast to a stop from a long fast run, the engine dies. This sometimes
- happens when I get off the freeway, but it does not happen every time. In fact,
- if it happens once, it will usually not happen again in a day. Thus, it is
- very difficult to diagnose. In the past 3 weeks, it has happened 4 times. Not
- enough to repeat it, but enough to find it annoying. No matter how I try, I
- cannot duplicate it immediately afterwards. Could it be the dashpot? Too
- simple? Thanks. Eric
-
- Newsgroups: rec.autos.tech
- Subject: one idle problem solved; one remains
- Distribution: usa
- Organization: ARCO Oil and Gas Company
-
- I finally repaired that unpleasant problem that I asked for help on the net
- some time ago. (It was sufficiently complicated such that no one was able to
- answer my post.) Recapping, the engine would not keep running under idle
- conditions. I suspected the idle control motor, but someone at work suggested
- that I look at the throttle position sensor first. His rationale was that the
- idle control motor never broke because of its design. The throttle position
- sensor, on the other hand, breaks easily. If it malfunctions, the engine
- control computer can read a full open throttle and open the EGR valve. If this
- occurs at idle, the broken vacuum kills the engine. Since the throttle
- position sensor is simply a potentiometer,t can get a dead spot at the position
- of greatest wear, that is, the idle position. So, I could temporarily repair
- the problem by just loosening it with a screwdriver, twisting it a degree or so,
- then tightening it. The dead spot moved to a different location.
-
- Now, however, I have another problem. I don't know where this problem is
- coming from. The car has a standard shift and sometimes (but only sometimes)
- when I coast to a stop from a long fast run, the engine dies. This sometimes
- happens when I get off the freeway, but it does not happen every time. In fact,
- if it happens once, it will usually not happen again in a day. Thus, it is
- very difficult to diagnose. In the past 3 weeks, it has happened 4 times. Not
- enough to repeat it, but enough to find it annoying. No matter how I try, I
- cannot duplicate it immediately afterwards. Could it be the dashpot? Too
- simple? Thanks. Eric
-
- Newsgroups: rec.autos.tech
- Subject: idle problem solved, new problem
- Distribution: usa
- Organization: ARCO Oil and Gas Company
-
- I finally repaired that unpleasant problem that I asked for help on the net
- some time ago. (It was sufficiently complicated such that no one was able to
- answer my post.) Recapping, the engine would not keep running under idle
- conditions. I suspected the idle control motor, but someone at work suggested
- that I look at the throttle position sensor first. His rationale was that the
- idle control motor never broke because of its design. The throttle position
- sensor, on the other hand, breaks easily. If it malfunctions, the engine
- control computer can read a full open throttle and open the EGR valve. If this
- occurs at idle, the broken vacuum kills the engine. Since the throttle
- position sensor is simply a potentiometer,t can get a dead spot at the position
- of greatest wear, that is, the idle position. So, I could temporarily repair
- the problem by just loosening it with a screwdriver, twisting it a degree or so,
- then tightening it. The dead spot moved to a different location.
-
- Now, however, I have another problem. I don't know where this problem is
- coming from. The car has a standard shift and sometimes (but only sometimes)
- when I coast to a stop from a long fast run, the engine dies. This sometimes
- happens when I get off the freeway, but it does not happen every time. In fact,
- if it happens once, it will usually not happen again in a day. Thus, it is
- very difficult to diagnose. In the past 3 weeks, it has happened 4 times. Not
- enough to repeat it, but enough to find it annoying. No matter how I try, I
- cannot duplicate it immediately afterwards. Could it be the dashpot? Too
- simple? Thanks. Eric
-
- Newsgroups: rec.autos.tech
- Subject: idle problem solved; one remains
- Distribution: usa
- Organization: ARCO Oil and Gas Company
-
- I finally repaired that unpleasant problem that I asked for help on the net
- some time ago. (It was sufficiently complicated such that no one was able to
- answer my post.) Recapping, the engine would not keep running under idle
- conditions. I suspected the idle control motor, but someone at work suggested
- that I look at the throttle position sensor first. His rationale was that the
- idle control motor never broke because of its design. The throttle position
- sensor, on the other hand, breaks easily. If it malfunctions, the engine
- control computer can read a full open throttle and open the EGR valve. If this
- occurs at idle, the broken vacuum kills the engine. Since the throttle
- position sensor is simply a potentiometer,t can get a dead spot at the position
- of greatest wear, that is, the idle position. So, I could temporarily repair
- the problem by just loosening it with a screwdriver, twisting it a degree or so,
- then tightening it. The dead spot moved to a different location.
-
- Now, however, I have another problem. I don't know where this problem is
- coming from. The car has a standard shift and sometimes (but only sometimes)
- when I coast to a stop from a long fast run, the engine dies. This sometimes
- happens when I get off the freeway, but it does not happen every time. In fact,
- if it happens once, it will usually not happen again in a day. Thus, it is
- very difficult to diagnose. In the past 3 weeks, it has happened 4 times. Not
- enough to repeat it, but enough to find it annoying. No matter how I try, I
- cannot duplicate it immediately afterwards. Could it be the dashpot? Too
- simple? Thanks. Eric
-
- Newsgroups: rec.autos.tech
- Subject: idle problem solved, new problem
- Distribution: usa
- Organization: ARCO Oil and Gas Company
-
- I finally repaired that unpleasant problem that I asked for help on the net
- some time ago. (It was sufficiently complicated such that no one was able to
- answer my post.) Recapping, the engine would not keep running under idle
- conditions. I suspected the idle control motor, but someone at work suggested
- that I look at the throttle position sensor first. His rationale was that the
- idle control motor never broke because of its design. The throttle position
- sensor, on the other hand, breaks easily. If it malfunctions, the engine
- control computer can read a full open throttle and open the EGR valve. If this
- occurs at idle, the broken vacuum kills the engine. Since the throttle
- position sensor is simply a potentiometer,t can get a dead spot at the position
- of greatest wear, that is, the idle position. So, I could temporarily repair
- the problem by just loosening it with a screwdriver, twisting it a degree or so,
- then tightening it. The dead spot moved to a different location.
-
- Now, however, I have another problem. I don't know where this problem is
- coming from. The car has a standard shift and sometimes (but only sometimes)
- when I coast to a stop from a long fast run, the engine dies. This sometimes
- happens when I get off the freeway, but it does not happen every time. In fact,
- if it happens once, it will usually not happen again in a day. Thus, it is
- very difficult to diagnose. In the past 3 weeks, it has happened 4 times. Not
- enough to repeat it, but enough to find it annoying. No matter how I try, I
- cannot duplicate it immediately afterwards. Could it be the dashpot? Too
- simple? Thanks. Eric
-
- Newsgroups: rec.autos.tech
- Subject: one idle problem solved; one remains
- Distribution: usa
- Organization: ARCO Oil and Gas Company
-
- I finally repaired that unpleasant problem that I asked for help on the net
- some time ago. (It was sufficiently complicated such that no one was able to
- answer my post.) Recapping, the engine would not keep running under idle
- conditions. I suspected the idle control motor, but someone at work suggested
- that I look at the throttle position sensor first. His rationale was that the
- idle control motor never broke because of its design. The throttle position
- sensor, on the other hand, breaks easily. If it malfunctions, the engine
- control computer can read a full open throttle and open the EGR valve. If this
- occurs at idle, the broken vacuum kills the engine. Since the throttle
- position sensor is simply a potentiometer,t can get a dead spot at the position
- of greatest wear, that is, the idle position. So, I could temporarily repair
- the problem by just loosening it with a screwdriver, twisting it a degree or so,
- then tightening it. The dead spot moved to a different location.
-
- Now, however, I have another problem. I don't know where this problem is
- coming from. The car has a standard shift and sometimes (but only sometimes)
- when I coast to a stop from a long fast run, the engine dies. This sometimes
- happens when I get off the freeway, but it does not happen every time. In fact,
- if it happens once, it will usually not happen again in a day. Thus, it is
- very difficult to diagnose. In the past 3 weeks, it has happened 4 times. Not
- enough to repeat it, but enough to find it annoying. No matter how I try, I
- cannot duplicate it immediately afterwards. Could it be the dashpot? Too
- simple? Thanks. Eric
-
- Newsgroups: rec.autos.tech
- Subject: idle problem solved, new problem
- Distribution: usa
- Organization: ARCO Oil and Gas Company
-
- I finally repaired that unpleasant problem that I asked for help on the net
- some time ago. (It was sufficiently complicated such that no one was able to
- answer my post.) Recapping, the engine would not keep running under idle
- conditions. I suspected the idle control motor, but someone at work suggested
- that I look at the throttle position sensor first. His rationale was that the
- idle control motor never broke because of its design. The throttle position
- sensor, on the other hand, breaks easily. If it malfunctions, the engine
- control computer can read a full open throttle and open the EGR valve. If this
- occurs at idle, the broken vacuum kills the engine. Since the throttle
- position sensor is simply a potentiometer,t can get a dead spot at the position
- of greatest wear, that is, the idle position. So, I could temporarily repair
- the problem by just loosening it with a screwdriver, twisting it a degree or so,
- then tightening it. The dead spot moved to a different location.
-
- Now, however, I have another problem. I don't know where this problem is
- coming from. The car has a standard shift and sometimes (but only sometimes)
- when I coast to a stop from a long fast run, the engine dies. This sometimes
- happens when I get off the freeway, but it does not happen every time. In fact,
- if it happens once, it will usually not happen again in a day. Thus, it is
- very difficult to diagnose. In the past 3 weeks, it has happened 4 times. Not
- enough to repeat it, but enough to find it annoying. No matter how I try, I
- cannot duplicate it immediately afterwards. Could it be the dashpot? Too
- simple? Thanks. Eric
-
-