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P2074 Error, Cause and Resolution

 
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Old 20 May 2013, 09:42 pm
mriggins's Avatar
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Join Date: Mar 2011
Posts: 7
Default P2074 Error, Cause and Resolution

2009 Non Turbo

Got a check engine light this morning. Did the Key ON/OFF/ON/OFF/ON trick and saw error code P 2074. No other code displayed.

Read other posts here and saw Crewzin's reply about this code:

P2074-manifold Pressure/throttle Position Correlation

CORRELATION - HIGH FLOW/VACUUM LEAK

When Monitored: Engine Running, during all drive modes.
Set Condition: If vacuum drops below 1.5 Hg with engine RPM greater than 2000 RPM
at closed throttle.

POSSIBLE CAUSES

VACUUM LEAK
HIGH RESISTANCE IN MAP (K7) 5 VOLT SUPPLY CIRCUIT
RESISTANCE TO GROUND IN MAP (K7) 5 VOLT SUPPLY CIRCUIT
MAP SENSOR
HIGH RESISTANCE IN (K1) MAP SIGNAL CIRCUIT
RESISTANCE TO GROUND IN (K1) MAP SIGNAL CIRCUIT
HIGH RESISTANCE IN (K4) MAP GROUND CIRCUIT
PCM
TP SENSOR OPERATION
HIGH RESISTANCE IN (K6) TP SENSOR 5 VOLT SUPPLY CIRCUIT
RESISTANCE TO GROUND IN (K6) TP SENSOR 5 VOLT SUPPLY CIRCUIT
TP SENSOR
HIGH RESISTANCE IN (K22) TP SIGNAL CIRCUIT
RESISTANCE TO GROUND IN (K22) TP SENSOR SIGNAL CIRCUIT
HIGH RESISTANCE IN TP (K4) SENSOR GROUND CIRCUIT


Won't tire you with the details of my cause. Basically when I changed the air filter a few days ago, I guess I didn't get the air filter cover on all the way.

Checked under the hood after getting home from work and noticed the cover looked strange. Unclamped both sides, reseated the new air filter and popped the cover back on. Looked correct, put the clamps back and turned the key. Check engine light went off.
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Old 21 May 2013, 06:41 am
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Join Date: Sep 2001
Posts: 27,744
Default Re: P2074 Error, Cause and Resolution

I love happy endings.
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Old 21 May 2013, 07:04 am
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Join Date: May 2011
Location: Dallas Texas
Posts: 3,722
Default Re: P2074 Error, Cause and Resolution

Yeah those places are great !

The wife and I stumbled on one of those in cabo two years ago. Seemed like a legit
Place from the outside,


Dont let the wife find out though!


Quote:
Originally Posted by CREWZIN View Post
I love happy endings.
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Old 21 May 2013, 07:20 am
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Posts: 27,744
Default Re: P2074 Error, Cause and Resolution

No, No, NO. This kind of Happy Endings ..... http://pinterest.com/mermaidmom48/ha...dings-dessert/
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