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Ford Escape v6 2007. Emission control light keeps coming on catalytic converter has been changed as have sensors and it still comes on slowly going crazy trying to solve problem

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Try running the fault codes and you may find that it is either an EGR problem or an EVAP problem
guessing just cost money on replacing what ain't broke

Posted on Apr 23, 2017


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04 escape PO452 code fault

You most likely have a problem with the emission control system on your car which a few components between the gas tank and exhaust manifold. The code you are getting is P0452 which is "Evap Emission Control System Pressure Sensor Low Input". Go to this link for a better description:

Nov 23, 2015 | Ford Cars & Trucks

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I have a jeep comm 2007 50,000 ml i keep getting code po13c i change my sensors twice already.the code come back after 3 mounth when i drive 60 ml per hr.

old post, no engine size stated. 3.7, 4.7 or 5.7?
Fed or Cal car.?
the codes are real, but guessing the parts bad, dont work.
there are tests you can do , that will find any DTC.
the FSM lists them.
NO other DTC, using a full scan tool .?
if not using a scan tool, you may be blind to others.
the dash codes, are limited. USE a REAL SCAN TOOL.

oxy 2/2 slow response. rich to lean.
Bank 2 sensor 2, is behind cat 2. right side. of car.
my guess is exhaust leak near here.
based on , front sensor 2/1 is happy.
any good shop with a smoke machine can find this is 15min flat.
why not get good help, that has good tools.???

here are the sensor rules, Cal versas FED:
The CAL car has mini cats and works differently.

If equipped with a California Emission Package, 4 sensors are used: 2 upstream (referred to as 1/1 and 2/1) and 2 downstream (referred to as 1/2 and 2/2). With this emission package, the right upstream sensor (2/1) is located in the right exhaust downpipe just before the mini-catalytic converter. The left upstream sensor (1/1) is located in the left exhaust downpipe just before the mini-catalytic converter. The right downstream sensor (2/2) is located in the right exhaust downpipe just after the mini-catalytic converter, and before the main catalytic converter. The left downstream sensor (1/2) is located in the left exhaust downpipe just after the mini-catalytic converter, and before the main catalytic converter.

Jan 31, 2014 | 2007 Jeep Commander 5.7

3 Answers

2005 Ford Escape, emission light on. Had tested and read coil D misfiring or something. Had front 3 coils changed. Emission light still on, car does not have a lot of power, struggles to go up the smallest...

bad catalytic converter. The three coil's an spark plug's in the back ,under intake manifold . If the spark plug's on these coil on plug ignition systems don't get replaced the plug gap get's to wide an then the spark can not jump the gap . Shorts out the coil , find's shortest path to ground an it goes into the PCM an fries the computer . Your best bet , take it to a qualified repair shop

Dec 16, 2017 | 2005 Ford Escape

1 Answer

2004 ford escape engine emission light on lunges while idleing

I have found this to be a common problem on 2001-2006 V6 Ford Escapes. In 99% of these cases the problem is the Catalytic Converter. The V6 has three in-total, one per exhaust manifold, and one after the Y connection. This third catalytic converter is the one that always gets clogged. Another clue to it's failure is a loss of power and a increase in fuel consumption. The later 2006-2008 have a redesigned exhaust system. Hope that helps.

Dec 16, 2010 | 2004 Ford Escape

1 Answer

I have a 2003 Ford Escape with a PO420 error code. When I accelerate, it sounds like air is coming from my engine. What is the problem and what should I do?

Here's what the code means, P0420 -- Catalyst System Efficiency Below Threshold (Bank 1).
Causes: Bad O2 senor, bad catalytic converter, and/or leaking exhaust manifold.

The error is coming from the O2 sensor number 1 between the exhaust manifold and the catalytic converter. The sensor itself may not be the problem. From what your describing is maybe a leak coming somewhere near the exhaust manifold. This would set off the P0420 code. Look around the exhaust manifold down to the catalytic converter for leaks that will leave black marks from burned fuel. If this can't be easily found, you may have to take the car in and have the exhaust hooked up to a smoke machine. This will inject smoke into the tail pipe and any leaks will be found by the smoke coming out of it.

Nov 16, 2009 | 2003 Ford Escape

1 Answer

My engine light keeps going on code 452. changed fuel pressure already, in addition my car revs to a 2 and sometimes 4 rpms, when i put it in park.

code 452 is EVAP emission control system pressure sensor low
motor is surging?
EGR may be blocked
Cheers Rob

Aug 15, 2009 | 2003 Ford Escape

1 Answer

Check engine light on for sometime; Response to throttle sluggish

If your catalytic converter is "below efficiency" or otherwise clogged, you will lose power as you drive and the vehicle heats. The more you drive the vehicle, the worse the problem will become. The exhaust can't escape properly through the catalytic converter, therefore your engine won't run properly. Your issues are related, and if you replace your catalytic converter they should go away.

May 26, 2009 | 2001 Volkswagen Jetta TDI

2 Answers

2001 Toyota Corolla Check Engine Light

Disconected Battery and wait about 5 min if when hooked back up if light comes on again I would look at something got unpluged while that other work was going on!!

Dec 23, 2008 | 2007 Toyota Corolla

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