Question about 1996 Lincoln Town Car

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1996 Lincoln Town Car - DIAGNOSTIC cod - P0171 P0174 Both banks are running lean Must fix it ?? any idea of cost ?

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Try to see if there is no air leak anywhere in the associated with the intake manifold. Any kind of leak, like a broken vacuum hose, or a loose connection in the air intake would cause the engine to run lean.

Posted on Nov 14, 2009

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2 Answers

Is it usual to have both p0171 and p0174 codes report at same time


sounds like the guy at the dealer ship hit the wires to the o2 sensor changing the oil fiter

Dec 22, 2012 | 1997 Lincoln Town Car

2 Answers

P0313;Misfire Detected with low fuel P0171-System too lean{bank1} P0174 System too lean{bank2} drive cycle


P0313 - Misfire Detected with Low Fuel
P0174 -System too Lean (Bank 2).
P0171 -System too Lean (Bank 1).

P0171 and P0174 mean "system too lean" for banks 1

Aug 24, 2010 | 2000 BMW 3 Series

1 Answer

What is the code P1451 solution? Runs great, codes P1451, P0171 and P0174 are coming up and the engine light is on. Car needs to get inspected but codes need to be fixed.


P0171 - System too Lean (Bank 1)
P0174 - System too Lean (Bank 2)
P1451 - EVAP Control System Canister Vent Solenoid Circuit Malfunction
I'm afraid I don't have enough info to tell you how to fix the P1451 but I'm certain it's the cause of the other two codes.

Jun 08, 2010 | 2000 Ford Taurus

1 Answer

I'm getting a DTC of P0171 and P0174. System to lean bank 1 & 2.


your car is probably running rough
its sucking air from the intake mininfold
is your intake maninfold plastic? but your veicle is defenetly having a vaccum problem

May 10, 2010 | 1996 Lincoln Town Car

1 Answer

What do these trouble codes mean p0171 and p0174


po171 is system too lean,bank 1,po174,is system too lean,bank 2,It sounds like a fuel pressure problem.

Jan 05, 2010 | 2000 Chevrolet Blazer

1 Answer

Diagnostic code #'s p0174,p0171 system to lean bank 1, system to lean bank 2 help


oxygen sensors are telling you that the mixture is too poor on ur sistem need to check its behaviour and see whats causing that lean mixture
hoope this helps

Nov 10, 2009 | 2001 Lincoln Navigator

1 Answer

Diagnostic Codes p0171 bank 1, and p0174 bank 2 (too lean)


Those codes are for the oxygen sensors, lean fuel mixture on both banks. Change them, problem with stalling and rough idle should go away.

Apr 23, 2009 | Ford Expedition Cars & Trucks

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