OBD P2020 IMRC Problem
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Junior Member
Joined: Nov 2017
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From: San Antonio, Texas
OBD P2020 IMRC Problem
I am getting an OBD code of P2020. When I looked it up online, its description is as follows:
A P2020 code is a generic powertrain code related to the fuel and air metering and auxiliary emissions control systems. The Intake Manifold Runner Control (IMRC) controls are utilized to change or control airflow in the engine’s air intake system. If a P2020 code appears, it means the engine control module (ECM) has found a problem with the intake manifold runner control circuit in the engine’s bank 2 (or number 2 cylinder).
I have a 2010 Ford F150 XLT 2WD, 4.6L Supercab. Everything I can locate seems to be about 5.4L engines, but as I mentioned my truck is a 4.6L. Initially, I have been looking for a schematic or diagram that shows where the IMRC control valve is located exactly. I'm hoping it isn't at the back of the engine by the firewall, but guessing that it probably is since I can't see anything that appears to be the control valve anywhere in plain sight. If anyone has a diagram or can explain where the control valve is located and can share it, I would appreciate it greatly! Also, any information on how to remove and replace it would be appreciated as well. Thanks!
A P2020 code is a generic powertrain code related to the fuel and air metering and auxiliary emissions control systems. The Intake Manifold Runner Control (IMRC) controls are utilized to change or control airflow in the engine’s air intake system. If a P2020 code appears, it means the engine control module (ECM) has found a problem with the intake manifold runner control circuit in the engine’s bank 2 (or number 2 cylinder).
I have a 2010 Ford F150 XLT 2WD, 4.6L Supercab. Everything I can locate seems to be about 5.4L engines, but as I mentioned my truck is a 4.6L. Initially, I have been looking for a schematic or diagram that shows where the IMRC control valve is located exactly. I'm hoping it isn't at the back of the engine by the firewall, but guessing that it probably is since I can't see anything that appears to be the control valve anywhere in plain sight. If anyone has a diagram or can explain where the control valve is located and can share it, I would appreciate it greatly! Also, any information on how to remove and replace it would be appreciated as well. Thanks!
Thread Starter
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Junior Member
Joined: Nov 2017
Posts: 5
Likes: 0
From: San Antonio, Texas
Here is the link where I obtained the initial description of the OBD code. There is additional information listed on the site that may also be helpful.
https://www.yourmechanic.com/article...by-parker-hill
https://www.yourmechanic.com/article...by-parker-hill
Thread Starter
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Junior Member
Joined: Nov 2017
Posts: 5
Likes: 0
From: San Antonio, Texas
2010 Ford F-150 XLT Extended Cab
4.6 L 281 CID V8 FI SOHC 24 Valve
VIN Engine Code: 8