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08 vw rabbit po 140 code - Volkswagen Cars & Trucks

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Is the O2 sensor grting bad?

Posted on Aug 29, 2019


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Posted on Jan 02, 2017


Miguel Barrios

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SOURCE: fuse relay diagram for 84 vw rabbit gti

9_16_2012_11_33_09_pm.jpg i believe this is the diagram you're looking for

Posted on Sep 16, 2012



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SOURCE: 2001 oldsmobile getting po140 code

The code is for bank one sensor two not working. The O2 sensor after the catalytic converter is not sending a signal to the computer or the signal is not changing.

Posted on Sep 27, 2012

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I have 01 monte carlo. The fan's are not working. Put a new censor in and relays. The fans are still not kicking on. Ran some code and one was PO 140 and PO 403 any idea what these codes mean?

as far as these codes they refer to the PCM signals to the o2 sensors ,but i don't think they would affect the cooling fans , does the engine overheat ? are you loosing coolant ? one reason the fans may not cut in is if the waterpump isn't working but you would have noticed lowcoolant , do the top and bottom radiator hose's get very hot ?if both hoses very hot and you've changed the sensor etc it may well be the actual fan motors , try putting a direct power and earth to the fan wire connectors , this way you will know if fans are good if they start , then the problem may be in the wiring , which can be a nightmare to trace , hope this is of some help

Jul 29, 2014 | 2001 Chevrolet Monte Carlo

2 Answers

What does code PO 140 mean

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2007 vw rabbit yellow power steering light coming on

VW rabbit 2007 has electronic power steering so you have to send it for diagnostic testing on an ODB II tester. It is the only way you going to pick up that intermittent fault. The error code on the diagnostic tester will reveal what is causing the problem. But go check out to see how this gets done.

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Fuse relay diagram for 84 vw rabbit gti

9_16_2012_11_33_09_pm.jpg i believe this is the diagram you're looking for

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