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Engine ligth cam on too leenbank 2 or code 174

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Why didnt the person who code scanned your car tell you what the codes mean??? If you would have gone to autozone parts store and had it done for free they would have told you what they mean.Than you could have gotten the parts there and have it fixed

Posted on Mar 16, 2011

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Posted on Jan 02, 2017

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2005 Cadillac won't start. no ignition fire. codes po300,po014,po340,po341, po345, po346, po420, po430, po171, po174


codes p 0014, 0340, 0341, 0345, 0346 all refer to the cam shaft position sensor==causes include-- advance mechanism faulty - CMP sensor --insecure cam rotor --wiring short to ground --air gap--ECM
codes p 0420, 0431 refer to the cat converter=== causes --cat converter failed ---wiring --- HO2S ( heated oxygen sensor)
code p 171 is a faulty HO2S sensor and
p 174 refers to system too lean bank 2===causes --intake /exhaust leak---fuel pressure /pump---injectorr/s AIR system---hose connection/s

Nov 16, 2015 | 2005 Cadillac STS

1 Answer

97 ford expedition has a code 171 and 174 bank 1 and 2 lean what do i do to fix this


Code 171 and 174 are for bank 1 and 2 running too lean. The engine has compensated as rich as it can go, and it is still to lean. This does not necessarily mean your mixture is bad, but something (a sensor) is telling the ECM to correct lean. The oxygen sensors alert the ECM to how lean/rich the exhaust is, and then the ECM trips a code. Maybe you have a bad oxy. sensor, but since there are 4 of them (2 per bank), I don't think they could all go at once.

Aug 31, 2013 | 1997 Ford Expedition

1 Answer

I have a 1997 chevy Suburban 350 5.7 vortek motor with "check engine" ligth on i put a code reader an say code P1345 ,change the whole distribuitor,crank shaft sensor,spark plugs cables an...


its a cam sensor corilation to so try replaceing that as well but if you want light off disconnect battery for ten seconds but if problem still persist the light will eventually come back on.

Jul 13, 2011 | 1998 Chevrolet C1500

2 Answers

Ml350 replaced a/b cam position sensor reset computer & and erra codes p0016/p0016 check engine ligth is reset car drives with light off when engine is turn off and started the light goes out if you...


P0010....'A' Camshaft Position Actuator Circuit (Bank 1)

P0011....'A' Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)

P0012....'A' Camshaft Position - Timing Over-Retarded (Bank 1)

P0013....'B' Camshaft Position - Actuator Circuit (Bank 1)

P0014....'B' Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)

P0015....'B' Camshaft Position -Timing Over-Retarded (Bank 1)

P0020....'A' Camshaft Position Actuator Circuit (Bank 2)

P0021....'A' Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)

P0022....'A' Camshaft Position - Timing Over-Retarded (Bank 2)

P0023....'B' Camshaft Position - Actuator Circuit (Bank 2)

P0024....'B' Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)

P0025....'B' Camshaft Position - Timing Over-Retarded (Bank 2)

I think your sensors are pattern parts and the readings /resistances are not the same as the original parts ,try some bosch units is my first suggestion ,

Nov 02, 2010 | Mercedes-Benz ML350 Cars & Trucks

1 Answer

O.k i try to fix my jeep i check the engine ligth i ready change all the sensors what the engine ligth say aand still the same went i running just turn off


You knowed what code are there? Read the Check Engine Codes

If you change the sensors, Reset the ECU, sometimes they keep stored in the mmeory.

Hope this help; good luck (remember rated this help).

May 11, 2010 | 2002 Jeep Grand Cherokee

1 Answer

CEL and Service dont work


The check engine light bulb in the instrument cluster is probably burned out

Apr 17, 2010 | 2005 Mitsubishi Outlander

1 Answer

The engine ligth is on the scnner say the code po


there are four O2 sensors,you need to check the sensor on the drivers side exhaust,the front O2 before the converter

Jan 19, 2010 | 2004 GMC Envoy

1 Answer

Check engine light on computer codes 171 174 171-HEGO sensor unable of snitch cylinder bank #1 fuel system at adaptive limit (1990 on) code 174 hego sensor snitching too slow, cylinder bank #1 (1990)


switch, we run off snitches. 171 174 banks 1 & 2 Lean. Most likely cause are Upper Intake Manifold Gaskets, failed seals. It's not 1990 on. It's 1996 and on OBD2.

Aug 03, 2009 | 2003 Ford Explorer Sport

1 Answer

Codes #171 & 174


first check out for o2 sensor if its faulty this can show up.but if its proper.Evaporative emission control system leak very small 171 System too lean (bank 1) 174 System too lean (bank 2) 

Jan 05, 2009 | 2004 Ford F150

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