ML320 P0222 Code Help? - Mercedes-Benz Forum

 
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post #1 of 2 (permalink) Old 06-15-2013, 03:15 PM Thread Starter
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ML320 P0222 Code Help?

Hello All. I have a 2002 ML320 Designo Ed. with approx. 116,000 easy miles on her. The truck starts and idles fine but has been acting like its in "limp" mode (lags upon accelerating). I replaced the MAF and I am not getting a code for that. I replaced the O2 sensors in the rear and I am not getting a code for that either. I am getting a P0222 code (Throttle/Pedal Position Sensor/Switch "B" Circuit Low). Replaced the TPS and it will work for about 3 months – then the same thing happens. I have replaced the TPS 2x in last 6 months (Hella part from NAPA) and it is doing it again. This (3rd) time, replaced withe OEM part from the dealer and it still acts the same way – Lagging acceleration and throws the P0222 code after I reset it. Any help would be appreciated. Thx, Nutso06
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post #2 of 2 (permalink) Old 06-19-2013, 11:41 PM
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Quote:
Originally Posted by Nutso06 View Post
Hello All. I have a 2002 ML320 Designo Ed. with approx. 116,000 easy miles on her. The truck starts and idles fine but has been acting like its in "limp" mode (lags upon accelerating). I replaced the MAF and I am not getting a code for that. I replaced the O2 sensors in the rear and I am not getting a code for that either. I am getting a P0222 code (Throttle/Pedal Position Sensor/Switch "B" Circuit Low). Replaced the TPS and it will work for about 3 months – then the same thing happens. I have replaced the TPS 2x in last 6 months (Hella part from NAPA) and it is doing it again. This (3rd) time, replaced withe OEM part from the dealer and it still acts the same way – Lagging acceleration and throws the P0222 code after I reset it. Any help would be appreciated. Thx, Nutso06
This is the PPS and not the TPS, replace the throttle pedal.

ERIC.

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