03 Tahoe P0300 and P0101 at High RPM
November 26th, 2018, 5:58 PM
#1
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03 Tahoe P0300 and P0101 at High RPM
My 2003 Tahoe recently started running crappy on the highway. 5.3 Vortec
Idles fine, drives fine around town, throws P0300 and P0101 codes when engine RPM is above 4500. Truck feels like it starts to hesitate, won't accelerate anymore and the CEL starts to flash.
I've cleaned the MAF, Replaced the Fuel Filter, Replaced the driver side upper Oxygen Sensor (Had a previous issue with overfuelling and running really crappy at all times). I'm looking into change the MAP and Possibly the MAF sensor unless I should be looking somewhere else.
Any input is appreciated,
Thanks
Idles fine, drives fine around town, throws P0300 and P0101 codes when engine RPM is above 4500. Truck feels like it starts to hesitate, won't accelerate anymore and the CEL starts to flash.
I've cleaned the MAF, Replaced the Fuel Filter, Replaced the driver side upper Oxygen Sensor (Had a previous issue with overfuelling and running really crappy at all times). I'm looking into change the MAP and Possibly the MAF sensor unless I should be looking somewhere else.
Any input is appreciated,
Thanks
November 27th, 2018, 4:14 AM
#2
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My 2003 Tahoe recently started running crappy on the highway. 5.3 Vortec
Idles fine, drives fine around town, throws P0300 and P0101 codes when engine RPM is above 4500. Truck feels like it starts to hesitate, won't accelerate anymore and the CEL starts to flash.
I've cleaned the MAF, Replaced the Fuel Filter, Replaced the driver side upper Oxygen Sensor (Had a previous issue with overfuelling and running really crappy at all times). I'm looking into change the MAP and Possibly the MAF sensor unless I should be looking somewhere else.
Any input is appreciated,
Thanks
Idles fine, drives fine around town, throws P0300 and P0101 codes when engine RPM is above 4500. Truck feels like it starts to hesitate, won't accelerate anymore and the CEL starts to flash.
I've cleaned the MAF, Replaced the Fuel Filter, Replaced the driver side upper Oxygen Sensor (Had a previous issue with overfuelling and running really crappy at all times). I'm looking into change the MAP and Possibly the MAF sensor unless I should be looking somewhere else.
Any input is appreciated,
Thanks
November 27th, 2018, 2:46 PM
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I replaced the MAF with one that my dad had lying around to see if any change and it throws the same codes and does the same things that it did with the original MAF.
I should also add that I have trouble going uphill, i could barely manage 85 KPH without massive hesitation. When the codes set, there is also loud pinging coming from what sounds like the drivers side
I should also add that I have trouble going uphill, i could barely manage 85 KPH without massive hesitation. When the codes set, there is also loud pinging coming from what sounds like the drivers side
December 3rd, 2018, 12:45 PM
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I changed the MAF with a brand new unit and disconnected the battery with no change
What should the Timing Advance be at Idle and 3000 RPM? I was revving the engine in park and noticed abnormally high (at least I thought) timing advance
Idle 700-800 RPM: 18 Degrees Advance
3000 - 3500 RPM: 47 Degrees Advance
What should the Timing Advance be at Idle and 3000 RPM? I was revving the engine in park and noticed abnormally high (at least I thought) timing advance
Idle 700-800 RPM: 18 Degrees Advance
3000 - 3500 RPM: 47 Degrees Advance
Last edited by Kyle Thompson; December 3rd, 2018 at 12:47 PM. Reason: added new MAF
