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I Have A Question About Code P0220


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#1 MS03 2500

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Posted 14 January 2010 - 09:44 PM

I came home from work and had to go back out. The AV went into Limp mode (Reduce Power) and had 3 P0220 codes no other codes at all. So I looked it up it said Throttle Position Sensor 2. I did the normal thing and looked at the wiring at the throttle body and found out there is no separate position sensor on the throttle body Hummmm.

Did some more searching found out there is a code p0120 which I don't have for the TPS 1. So I guessing there are 2 circuits on the gas pedal. I also search here to find a answer.

Has anyone ever had the P0220 only.

By the way I hate Drive by wire The gas pedal is absolutely dead and it won't not go over 35 MPH and I have to clear the codes to make it run normal, but I don't want to drive it until I get it fixed because I don't want it to go into Reduced Power at a bad time. This is the first time my 2500 has let me down in 85,000 miles other than the cluster motor and when it dropped into 4 LO by itself.

#2 thearborbarber

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Posted 14 January 2010 - 10:16 PM

http://www.chevyaval...43119.msg683857
2009 GMC Sierra 1500
1999 Chevy Camaro Z28 (Mr. Hyde)
2004 Honda Civic (Dr. Jeckel)

#3 MS03 2500

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Posted 14 January 2010 - 10:31 PM

I saw that by the way, I'm am MS03 2500 over there too.
SPerry was my hero

Edited by michigansilver03, 14 January 2010 - 10:36 PM.


#4 govtech4

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Posted 14 January 2010 - 11:52 PM

bulletin does not apply to your truck,you have an 8.1 sry.


you get a "fail" Chris lol
How do you write a signature on a laptop screen ??

lmao.


I'm here all week ,try the Veal !!


Rob

#5 MS03 2500

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Posted 15 January 2010 - 10:09 AM

Looks like I'm going to spend my weekend hunting down sensor gremlins.

#6 Nytemare

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Posted 15 January 2010 - 11:21 AM

P0220 Throttle/Pedal Position Sensor/Switch "B" Circuit

Not sensor 2....its the second circuit on the sensor.

There is a wide open circuit
There is a partial throttle circuit and
There is a shut circuit

They are Labeled Circuit A, B and C and they correspond to the 4 or 5 pins on the connector. Pin A Pin B Pin C and gnd...sometimes the partial circuit has its own gnd reference pin.

To test...you find B circuits pin...attach a lead of a multi meter to it and its gnd ref pin and move the Throttle plate. Watch the resistance change. Nice smooth transitions mean its good...you do this both at the TB and at the Pedal.
Posted Image

so you expected something that weights 5000 pounds and has aerodynamics of a piano to get what?


2003 Silverado XCSB, 4.8L, Flowmaster super44 SI/DO, G80 3.42, MSD Wires, K&N drop-in filter, Yellow Top Battery, Royal Purple in entire Drivetrain, W4M tune....My DD..............................SOLD
2010 Silverado XCSB 5.3L Z71 Summit White, Diablo Trinity tuned....more to come soon.
2010 Cobalt 2.2L LT 2Dr. Victory Red....gas saver/wife's Car.......SOLD
2011 Cruze 1.4L Turbo 1LT Crystal Red ...Again, Wifes car and gas saver
1978 LJ80, 16V 1600cc on 31's, Spring over lift, awaiting Full Frame off build...The Toy

#7 MS03 2500

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Posted 15 January 2010 - 02:37 PM

Thanks Nytemare, but I got one more question the diagram I have has the leads labelled rtn, sig, ref so is the rtn considered ground

Edited by michigansilver03, 15 January 2010 - 02:38 PM.


#8 thearborbarber

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Posted 15 January 2010 - 05:06 PM

bulletin does not apply to your truck,you have an 8.1 sry.


you get a "fail" Chris lol


I only get a partial fail. The third tsb down included the 8.1. :dunno:
2009 GMC Sierra 1500
1999 Chevy Camaro Z28 (Mr. Hyde)
2004 Honda Civic (Dr. Jeckel)

#9 govtech4

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Posted 15 January 2010 - 05:14 PM

lol
How do you write a signature on a laptop screen ??

lmao.


I'm here all week ,try the Veal !!


Rob

#10 Nytemare

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Posted 15 January 2010 - 07:09 PM

Thanks Nytemare, but I got one more question the diagram I have has the leads labelled rtn, sig, ref so is the rtn considered ground

Yeah rtn is the gnd.

This one is a little different...signal is the output from the peddle, ref is the "0" reference for the peddle and the TPS...so fully shut or fully open is based off this reference point and Sig is the difference between the reference and the wiper on the peddle rheostat. So between sig and ref is one circuit, sig and rtn is another and rtn and ref is another.
Posted Image

so you expected something that weights 5000 pounds and has aerodynamics of a piano to get what?


2003 Silverado XCSB, 4.8L, Flowmaster super44 SI/DO, G80 3.42, MSD Wires, K&N drop-in filter, Yellow Top Battery, Royal Purple in entire Drivetrain, W4M tune....My DD..............................SOLD
2010 Silverado XCSB 5.3L Z71 Summit White, Diablo Trinity tuned....more to come soon.
2010 Cobalt 2.2L LT 2Dr. Victory Red....gas saver/wife's Car.......SOLD
2011 Cruze 1.4L Turbo 1LT Crystal Red ...Again, Wifes car and gas saver
1978 LJ80, 16V 1600cc on 31's, Spring over lift, awaiting Full Frame off build...The Toy

#11 MS03 2500

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Posted 19 January 2010 - 12:20 PM

Well it stop throwing codes and runs fine, tested the sensor and it had I even flow. I'm thinking since it is so close to the gas pedal and the gas pedal is so far to the right I may have kicked it.

#12 Nytemare

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Posted 19 January 2010 - 03:33 PM

Well it stop throwing codes and runs fine, tested the sensor and it had I even flow. I'm thinking since it is so close to the gas pedal and the gas pedal is so far to the right I may have kicked it.

Or there was a little moisture or corrosion on the contacts...pulling it apart got rid of it and now everything is ok.

I would grab a little packet of dielectric grease...the stuff you put in plug wire boots...and put some on the connectors inside and outside.
Posted Image

so you expected something that weights 5000 pounds and has aerodynamics of a piano to get what?


2003 Silverado XCSB, 4.8L, Flowmaster super44 SI/DO, G80 3.42, MSD Wires, K&N drop-in filter, Yellow Top Battery, Royal Purple in entire Drivetrain, W4M tune....My DD..............................SOLD
2010 Silverado XCSB 5.3L Z71 Summit White, Diablo Trinity tuned....more to come soon.
2010 Cobalt 2.2L LT 2Dr. Victory Red....gas saver/wife's Car.......SOLD
2011 Cruze 1.4L Turbo 1LT Crystal Red ...Again, Wifes car and gas saver
1978 LJ80, 16V 1600cc on 31's, Spring over lift, awaiting Full Frame off build...The Toy

#13 MS03 2500

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Posted 18 February 2010 - 09:04 PM

Well it stop throwing codes and runs fine, tested the sensor and it had I even flow. I'm thinking since it is so close to the gas pedal and the gas pedal is so far to the right I may have kicked it.

Or there was a little moisture or corrosion on the contacts...pulling it apart got rid of it and now everything is ok.

I would grab a little packet of dielectric grease...the stuff you put in plug wire boots...and put some on the connectors inside and outside.



Grrrrr it happen again, just like before I park it for about 20 minutes start it up and it pops up 3 times. I have been monitoring and no codes.




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