Car stalls at Stop and Go Traffic
10-06-2004, 11:30 PM
#11
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Originally Posted by Slows2k,Oct 7 2004, 05:00 AM
Salaska, does the car stall with the Air Conditioning on at idle?
I've noticed that it takes longer for the PCM to compemsate for A/C load at idle, and the RPM drops, then takes a few seconds before stabilizing. ( more pronounced with the E-manage) Mine has never stalled unless the engine is cold and I leave the AC on.
Where in the injection table are your changes?
I've noticed that it takes longer for the PCM to compemsate for A/C load at idle, and the RPM drops, then takes a few seconds before stabilizing. ( more pronounced with the E-manage) Mine has never stalled unless the engine is cold and I leave the AC on.
Where in the injection table are your changes?
Nearly the whole injection table has changes, even in non-boost area. Maybe i should zero the settings in such area's without boost and let the PCM handles them.
10-19-2004, 08:22 AM
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I whacked the MAP-Sensor and resetted the ECU. Also i altered the E-Manage Settings.
But no success and today i got a CEL (P0132 Primary O2 Sensor High Voltage). I use a PLX-M300 with a Bosch Wideband Lambda Sensor which is used as the primary O2 Sensor (Stock Sensor was removed).
On the PLX-M300 the A/F Ratio reacts normal, maybe the cable which goes from the PLX-M300 to the ECU is loosen. I will check this tomorrow.
Could this CEL cause the problem with the bad idle and nearly cut-offs in low throttle activities?
But no success and today i got a CEL (P0132 Primary O2 Sensor High Voltage). I use a PLX-M300 with a Bosch Wideband Lambda Sensor which is used as the primary O2 Sensor (Stock Sensor was removed).
On the PLX-M300 the A/F Ratio reacts normal, maybe the cable which goes from the PLX-M300 to the ECU is loosen. I will check this tomorrow.
Could this CEL cause the problem with the bad idle and nearly cut-offs in low throttle activities?
10-19-2004, 08:31 AM
#14
I have not seen a MAP related idle problem.. but I have seen idle problems. I have found that the IK24 plugs which are terrific for track use are the source of my occasional idle problem. When I have a numerous cold starts for short trips in traffic I eventually have an idle problem. A number of miles of higher RPM / load to really get the engine hot will return my idle to normal.. Or I can return to the IK22's for periods of dedicated street use and the hotter plug refuses to foul the same way so the idle is fine.
10-19-2004, 08:40 AM
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Originally Posted by cdelena,Oct 19 2004, 05:31 PM
I have not seen a MAP related idle problem.. but I have seen idle problems. I have found that the IK24 plugs which are terrific for track use are the source of my occasional idle problem. When I have a numerous cold starts for short trips in traffic I eventually have an idle problem. A number of miles of higher RPM / load to really get the engine hot will return my idle to normal.. Or I can return to the IK22's for periods of dedicated street use and the hotter plug refuses to foul the same way so the idle is fine.
An Example:
In Stop an Go Traffic: Car Idles fine, but when i hit throttle the car bogs sometimes. I have than to play with the clutch and give more throttle. Than the car bogs a little and run fine after i floor the gas pedal...
Another Example:
Car runs, i let the throttle off and accelerate after the rpm's drop to 3000. Car bogs till 4000 rpm than it runs great.
I have no problems at WOT at all. Only i low and half throttle....
10-20-2004, 12:42 AM
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I just checked the Primary O2 Sensor with my OBD-2 Tool.
It seems to run without a problem. The voltage goes up and down when i hit throttle and does not stay long over 0.9V....
But so far the CEL came up the second time now (2 weeks ago and yesterday), which makes me wonder.
I will soon swap the Throttle Body, maybe this is the cause.
BTW: If an fuel injectors fails, it should throw a CEL, right?
It seems to run without a problem. The voltage goes up and down when i hit throttle and does not stay long over 0.9V....
But so far the CEL came up the second time now (2 weeks ago and yesterday), which makes me wonder.
I will soon swap the Throttle Body, maybe this is the cause.
BTW: If an fuel injectors fails, it should throw a CEL, right?
10-20-2004, 04:37 AM
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Originally Posted by Slows2k,Oct 20 2004, 01:18 PM
what is the DTC?
Usually if an injector goes bad, a misfire DTC will be set.
Usually if an injector goes bad, a misfire DTC will be set.
I was just curious if my problems could be a cause of a damaged injector.
Tomorrow i will order a new MAP-Sensor and hopefully this will solve the bogging...
10-21-2004, 11:02 AM
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Today the problem comes again. But this time i looked at my wideband gauge and it shows me the the A/F Ratio was very very lean (19.1:1 and up).
Than i parked my car and let it idle. Even at idle the A/F Rate was at 19:1 and up. I shut down the engine and start it again. The A/F at idle dropped down to 15:1 - 14.7:1 which is normal. It was like a fuel cut....
As i said this problems happens only at half throttle in low rpm's. But when this happens even a full throttle barely help. All i can do is to play with my clutch.
No CEL yet. Could it be the MAP or TPS Sensor? Or could it be damaged Primary O2 (which is a Bosch Wideband). What me makes wonder is, if the primary O2 Sensor would be defective it would not show anything on the wideband gauge, right?
I really need your help!
Than i parked my car and let it idle. Even at idle the A/F Rate was at 19:1 and up. I shut down the engine and start it again. The A/F at idle dropped down to 15:1 - 14.7:1 which is normal. It was like a fuel cut....
As i said this problems happens only at half throttle in low rpm's. But when this happens even a full throttle barely help. All i can do is to play with my clutch.
No CEL yet. Could it be the MAP or TPS Sensor? Or could it be damaged Primary O2 (which is a Bosch Wideband). What me makes wonder is, if the primary O2 Sensor would be defective it would not show anything on the wideband gauge, right?
I really need your help!
10-21-2004, 11:47 AM
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[QUOTE=Salaska,Oct 19 2004, 08:22 AM]
But no success and today i got a CEL (P0132 Primary O2 Sensor High Voltage). I use a PLX-M300 with a Bosch Wideband Lambda Sensor which is used as the primary O2 Sensor (Stock Sensor was removed).
On the PLX-M300 the A/F Ratio reacts normal, maybe the cable which goes from the PLX-M300 to the ECU is loosen.
But no success and today i got a CEL (P0132 Primary O2 Sensor High Voltage). I use a PLX-M300 with a Bosch Wideband Lambda Sensor which is used as the primary O2 Sensor (Stock Sensor was removed).
On the PLX-M300 the A/F Ratio reacts normal, maybe the cable which goes from the PLX-M300 to the ECU is loosen.