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Trouble code P2146 , P2149 record in memory

Engine do is not working

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  • Issam Issam Apr 30, 2013

    P2146 P2149 and enginr will not work

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Suddendly start running rough and worser on overdrive. Iused scanner it showed p205,p2609and p2149.Please tell me what to do.


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CarGurusAug 28, 2012 - I'm getting a code P2149 fuel injector group B supply volt... ... I'm getting a code P2149 fuel injector group B supply voltage circuit/open. ... 2005 dodge ram 1500 won't move when in gear 38 answers.

Question on codes p0202 and p2149 - Chevy and GMC Duramax Diesel Forum

www.duramaxforum.com > ... > 04.5-05 LLY Duramax Powertrain

Dec 5, 2009 - 6 posts - ‎4 authors
Hi got a 05 3500 running really ruff and throwing 2 codes p0202. ... Number #2 injector Drive fault, incorrect current on a fuel injector circuit (the ...

breaking down on freeway code p2149 - Chevy and GMC Duram


Dec 05, 2015 | Cars & Trucks

1 Answer

I have had fault code p2146 which is power supply injection valves bank 1 open circuit and p1517 which is main relay come up and the car is not sarting. i replaced the head gasket and water pump as the oil...


i think you have not reconnected a multiplug somewhere on the engine thats all their is to it something you have touched is causing this problem and without a good look myself i honestly couldnt say what the problem is but its something stupid like either a bad connection in a multiplug or you have just forget to re-connect one

Aug 24, 2011 | 2006 Volkswagen Passat

1 Answer

Mecha error shows on the dashboard and goes off. Normally shows when the engine is first started in the morning.


I presume the "Mecha error" is in actuallity the "Check Engine" light? If so, the engine (powertrain) computer (PCM) would have stored a Diagnostic Trouble Code (DTC) in its memory. Find out what, if any, codes were recorded/stored in memory... we can take it from there.

Jun 10, 2011 | 2006 Hyundai Tucson

1 Answer

WHERE CAN I FIND ERROR CODE INFO FOR P2146 PLS ?


DTC P2146

The ECM supplies high voltage to each fuel injector on the ignition voltage circuits. The ECM energizes each fuel injector by grounding the command circuit between the FICM (fuel injector control module) and the fuel injector. The FICM monitors the status of the ignition voltage circuits and the fuel injector command circuits. When a fuel injector circuit condition is detected by the FICM, all of the fuel injectors will be disabled. If a circuit condition is detected on a fuel injector circuit for cylinders 1, 2, 3, or 4, DTCs P0201, P0202, P0203, P0204 will set, along with DTC P2146. So something is wrong with your injectors or their wiring.

Apr 27, 2011 | 2007 Volkswagen Passat Sedan

1 Answer

The check engine suddenly came on. Displaying p2146 code and p0202 code. Engine running rough and lacks power. It has done this approximately 6 times in the last 18 months. Recovers after a while. ...


The error code p2146 says fuel injector group A supply voltage circuit/open problem.The p2146 error code is related to the wiring in the valve cover that going to the injectors.It is part of the gasket and comes as an assembly.The wiring/gasket assembly for the valve cover is the most common cause for this problem but you disconnect the injectors and check ,if the code comes up again then injectors are also faulty. you will need to remove and install valve cover to test each injector. For this one at a time, disconnect both wires from each injector and insulate the terminal ends so the circuit will not short to ground connections. ---------------------- And for the error code P0202 the code says :-- Injector Circuit Malfunction - Cylinder 2. Its #2 injector circuit malfuction.Looks like either bad injector cylinder #2 or maybe an injector wire disconnected or shorted out.
---------- Check and possibly clean the connector on the injector and the connector itself.
It might just be loose.And that is causing this errors.
------- Keep updated with any more query.Thanks.

Oct 12, 2010 | Dodge Ram 2500 Cars & Trucks

2 Answers

2007 dodge 3500, 5.9 cummins,engine light on, fault code p2146, running rough


It's a code that signify's you have a voltage circuit problem with one or more fuel injectors. When a problem is found with the fuel injector circuit it affects fuel delivery on all the injectors and that is why it is running rough.

Good Luck

Jan 29, 2010 | 2007 Dodge Ram 3500 Quad Cab Laramie

3 Answers

What is a P2149 code


P2149 Fuel Injector Group “B” Supply Voltage Circuit/Open

HI. This code is indicating that one of the injectors are experiencing difficulties. It is damaged. the circuit is unable to be closed. This will allow for this particular injector to remain open, causing slight leak. This may produce smoke on start up, or rich mix in the effected cylinder.Have the injectors tested asap. replace the failed injector. Group b will usually e located on the front, or left side rail, depending on the orientation of the engine.

Nov 12, 2009 | 2004 Dodge Ram 2500

1 Answer

I have a dtc code of 2146 and can't find out what it is


Are you sure it isn't P2146? If it is P2146 it is Injector-group A, supply Voltage-open circuit. Possible causes-Wiring, engine control (EC) relay, injector.

Jul 30, 2009 | 1993 GMC G2500

1 Answer

P2146 and p0202 codes are posting


P0202 = Injector Circuit Malfunction - Cylinder 2
P2146 = Fuel Injector Group A Supply Voltage Circ/Open

Looks like either bad injector cylinder #2 or maybe an injector wire disconnected or shorted out.

Jun 06, 2009 | 2006 Dodge Ram 2500

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