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Would the power loss on and off on my transporter 1.9 tdi have any thing to do with the cat converter

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Just completed a Cat-converter replacement and all

do a back pressure test on the cat-converter check your power steering oil level make sure you use correct oil

Posted on Dec 11, 2010

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SOURCE: loss of power.chek engine came on. did diag. test and said:heated cat.wec air sys. and acfridge

Hi there:Just one code there, or your descripotion is about two or mode fault codes; we will need exactly what code number is detected there.
You could find code description here: obd_codes.html
Hope this helps.

Posted on Mar 05, 2012

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SOURCE: is bank 1 sensor 1 same side as bank 2 sensor 1

Check this possible engine locations...


Hope this helps.

Posted on Mar 28, 2012

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SOURCE: o2 sensors location

Bank 1 Sensor 1 is before the catalytic converter
Bank 1 Sensor 2 is after the catalytic converter


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Posted on Mar 28, 2012

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SOURCE: black smoke and loss of power when engine warm no cat

black smoke sign fuel too rich , stuck egr will make it hard to start, check reprogramming was done correctly or O2 sensor operating

Posted on Jun 02, 2012

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1 Answer

My 2005 audi a4 2.5 tdi convertible stuggles to pick up power wont go any faster than 30mph

plugs, cat converter plugged ,improper gas , bad timing ,fuel pump, fuel filtre air filter lots to check first to solve why

Nov 03, 2013 | Cars & Trucks

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1998 dodge intrepid loss of power and chk eng light came on

Hi:Just one code there, or your descripotion is about two or mode fault codes; we will need exactly what code number is detected there.

You could find code description here: obd_codes.html

Hope this helps

Mar 05, 2012 | 1998 Dodge Intrepid

1 Answer

1998 buick century code p0420

code p 0420 refers to cat converter system bank 1---efficiency below threshold====causes ---cat converter---wiring---HO2S (heated oxygen sensor, the one in the exhaust manifold before the cat converter)
code p 0300 is random misfires
I would suggest changing the HO2S as it reports to the ECM on exhaust content so that the ECM can adjust the air/fuel ratio
so it is logical that if that unit is not reporting correctly, the cat converter may be having trouble burning off the gasses correctly
The oxygen sensor(O2S) reads the results of the cat converter operation and helps fine tune the ECM settings

Mar 10, 2017 | 1998 Buick Century

1 Answer

Loss of power. possible cateletic converter plugged.

Yes, it could be the cat, but could be something else.

To rule out the cat, disconnect the exhaust before the cat (will be loud), but if it is the cat, the power will be back.

Hope this helps.

Feb 23, 2011 | 2003 Ford F250 Super Duty Crew Cab

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The vehicle was put on a diagnostic machine for loss of power and it coded the o2 sensor, and the mass air flow, and EGR valve. We put a new o2 sensor in and cleaned the mass air flow. It ran, but no...

no-- but could mean that the O2 sensor is not correct
it is a common misconception that all of the oxygen sensor are the same
the fact is that even they are known a oxygen sensors there are 2 completely different units
the sensor in the exhaust manifold before the cat converter is in fact a heated oxygen sensor and it's function is to report the exhaust composition so that the ecm can adjust the air/fuel mixture
the other is an o2 sensor located after the cat converter and fine tunes the system after the cat converter has done it's job
if the cat converter is faulty , the o2 sensor will try to have the ECM correct the mixture
the loss of power if it is a cat converter comes from a blocked exhaust system and that is most evident at high rpms or under power

May 04, 2017 | 1996 Suzuki X-90

1 Answer

Just completed a Cat-converter replacement and all new engine mounts. After 60 days terrible noise gurgle and loss of power at 2100 rpm????

do a back pressure test on the cat-converter check your power steering oil level make sure you use correct oil

Dec 11, 2010 | 2002 Audi A6

1 Answer

Ford Explorer 1998 4.0 sohc Diagnostic trouble code P0420.. I was told two different definitions. 1- oxygen sensor and 2 left side catalytic converter

If you don't have poor gas milage and loss of power, the cat is not restricted and not at fault, however, an engine misfire can also trigger that code.
Change the 02 sensor down by the cat first,( it's cheaper than a cat), see if that clears the code, if not, then go for the cat. You will already have a new 02 sensor, so that will eliminate those two. Hope this helped.

Mar 04, 2010 | 1998 Ford Explorer

2 Answers


I can try to help. The chk engine light is generally tripped by the #2 02 sensor. The one after the cat converter. It 's purpose is to monitor the efficiecy of the cat converter. You state there is a power loss problem also. This loss of power is common when the cat converter is restricted and the exhaust can't escape as fast as needed. . You can tell the converter is bad by a sulphur smell in the exhaust, a wheezing at the tail pipe, Or, the exhaust does not immediately stop when theengine is turned off. Good Luck. Have the cat conv checked and replaced . I hope yhis is the help you needed, Ned

Nov 05, 2009 | 2000 Lincoln LS

1 Answer

Automatic transmission seems sluggish in lower gears on vw jetta tdi, also check engine light on(remains on)

Have your cat converter checked. If it is restricted it with affect power and fuel.

Oct 18, 2009 | 2000 Volkswagen Jetta TDI

4 Answers

TDI loss of power

check the hose on the intercooler and around the turbo, check for split on turbo and the intercooler hose not too soft as they can collaps while driving

Jan 07, 2009 | 2000 Volkswagen Jetta TDI

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