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P20082020 Model Year TelemetryMedium Severity

P2008 on 2020 RAM 3500

Intake Manifold Runner Control Circuit/Open (Bank 1)

Technical troubleshooting wire for fault code P2008 specifically tailored for the 2020 RAM 3500. Includes wiring sensor pinouts, freeze frame PID parameters, and step-by-step diagnostic tree.

2020 Engine Control Module (ECM) Specific Calibration
RAM 35002020 3500
2020 RAM 3500
Truck6.7L High-Output Cummins Turbo-Diesel (420HP / 1,075 lb-ft torque / Dual Rear Wheel)
2020 Stats
Vehicle
2020 3500
6.7L High-Output Cummins Turbo-Diesel (420HP / 1,075 lb-ft torque / Dual Rear Wheel)
ECU Subsystem
Automotive OBD-II
SAE Mode $01 & $02
Est. Repair Cost
$120 - $350
OEM Parts & DIY
Urgency Level
Medium
Drivable (Short)
Switch 3500 Model Year for P2008

Common 2020 3500 Symptoms

  • Check Engine Light on
  • Loss of high-RPM horsepower

Likely Root Causes on 2020 3500

  • Failed IMRC electric solenoid valve
  • Broken wiring harness
  • Blown fuse

Step-by-Step Fix Protocol for 2020 RAM 3500

Step 1: Scan & Record Freeze Frame Data

Connect an OBD-II scanner to the DLC port under the driver dashboard. Record engine RPM, Short Term / Long Term Fuel Trim (STFT/LTFT), and engine coolant temperature at the moment P2008 set.

Step 2: Inspect Wiring Harness & Pin Voltages

Inspect the sensor connector on the 2020 3500 engine bay. Use a multimeter to verify reference voltage (5.0V / 12.0V) and ground continuity.

Step 3: Component Replacement & PCM Reset

Replace the verified defective component using OEM or equivalent grade parts. Clear DTC P2008 and complete an EPA drive cycle to verify readiness monitors set to READY.

Recommended Parts & Testing Tools

Equipment for Diagnosing 2020 RAM 3500 (P2008)

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Direct-Fit Replacement Part

2020 RAM 3500 OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for 2020 RAM 3500.

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Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
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Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for 2020 RAM 3500Verified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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