I have gotten a code on my truck that is P 2121 Pedal Position Sensor 1 Performance/ Rationality. Can any one tell me what this might mean and how difficult it might be to change. 
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P2121 Code
- Thread starter JEsterline
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Issue 128 – Digital Version
Digital Magazines
FREE!
TDR Test Drive - Digital Edition
Renew
Subscribe
Gift Subscriptions
Back Issues
Subscription Status
Address Change Form
Buyer's Guides
Ram Diagnostic Trouble Codes
The Perfect Collection
The Perfect Collection Vol. II
TSB Updates
Dodge/Cummins Historical Overview
Cameron Collection
What Makes Us Tick?
Product Showcase
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