car bogs in stop and go traffic
Thread Starter
Drifting
Joined: Feb 2004
Posts: 1,250
Likes: 0
From: Katy TX
St. Jude Donor '08-'09
car bogs in stop and go traffic
no codes thrown. here is what happens.
bumper to bumper traffic the car gets sluggish, bad throttle response somewhat bogging after in traffic 10-15 minutes until past 1500. run out past 1500 and it acts right. Get into stop and go traffic again and after about 10-15 minutes it starts again. Temps good, pressures good.
any ideas? thinking it may be o2 sensors, but that would throw a code wouldnt it? or is this a possible tune problem?
bumper to bumper traffic the car gets sluggish, bad throttle response somewhat bogging after in traffic 10-15 minutes until past 1500. run out past 1500 and it acts right. Get into stop and go traffic again and after about 10-15 minutes it starts again. Temps good, pressures good.
any ideas? thinking it may be o2 sensors, but that would throw a code wouldnt it? or is this a possible tune problem?
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Sometimes idle (or near idle)issues like this can be mixture related like too much EGR (exhaust gas recircualtion) flow which may not throw a code. Fouled/fouling plug at low rpm? If it continues I would hope at some point you will get a code. The fact that it takes 10-15 minutes in traffic before it starts also indicates some possible heat soak issue. What of course is the question. Try running some injector cleaner and see if that has any effect.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Recommend that you check the following..
- SPARKPLUGS Gap and condition. If the plugs are fouled, it could cause that issue. How does it run WOT??
- IGNITION SWITCH Voltage Output. If the Voltages that supply the modules, injectors and coils on the (HOT IN RUN and START are not correct, they could have a negative effect when over alternator battery over all output is low. Do you have ANY DTCs (HISTORY) at all????
- Dirty MAF/Throttle Body/Throttle blade..
- Does it smoke when it faulters??
Bill
- SPARKPLUGS Gap and condition. If the plugs are fouled, it could cause that issue. How does it run WOT??
- IGNITION SWITCH Voltage Output. If the Voltages that supply the modules, injectors and coils on the (HOT IN RUN and START are not correct, they could have a negative effect when over alternator battery over all output is low. Do you have ANY DTCs (HISTORY) at all????
- Dirty MAF/Throttle Body/Throttle blade..
- Does it smoke when it faulters??
Bill
Thread Starter
Drifting
Joined: Feb 2004
Posts: 1,250
Likes: 0
From: Katy TX
St. Jude Donor '08-'09
Recommend that you check the following..
- SPARKPLUGS Gap and condition. If the plugs are fouled, it could cause that issue. How does it run WOT??
- IGNITION SWITCH Voltage Output. If the Voltages that supply the modules, injectors and coils on the (HOT IN RUN and START are not correct, they could have a negative effect when over alternator battery over all output is low. Do you have ANY DTCs (HISTORY) at all????
- Dirty MAF/Throttle Body/Throttle blade..
- Does it smoke when it faulters??
Bill
- SPARKPLUGS Gap and condition. If the plugs are fouled, it could cause that issue. How does it run WOT??
- IGNITION SWITCH Voltage Output. If the Voltages that supply the modules, injectors and coils on the (HOT IN RUN and START are not correct, they could have a negative effect when over alternator battery over all output is low. Do you have ANY DTCs (HISTORY) at all????
- Dirty MAF/Throttle Body/Throttle blade..
- Does it smoke when it faulters??
Bill
