Question about Saab 9

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Engine light on get it check and the code is p0420,p1334 the car is a 95 and 2001

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P0420=catalyst system efficiency below threshold.p1334=poor combustion cylinders 3&4. Points to DI cassette.

Posted on Nov 03, 2015

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Posted on Jan 02, 2017

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SOURCE: check engine light on;engine codes p0420 and p0773

I looked up the codes you posted.
P0420 is showing a bad oxygen sensor on bank #1, the one down by the catalytic converter.
P0773 is an electrical problem with the shift solenoid E.
A bad oxygen sensor would cause lower fuel milage.

Posted on Mar 11, 2009

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SOURCE: need info on codes PCM.P0134 and P0420

Both codes are for the oxygen sensors.
P0134 oxygen sensor on bank #1, sensor #1 is bad.
P0420 oxygen sensor on bank #1, the sensor down by the catalytic converter, is also bad.

Posted on Mar 26, 2009

SOURCE: P0420 and check engine light

A p0420 code is set when the computer determines that the catalytic converter isn't doing it's job. In almost all instances that code can't set as a result of a bad o2 sensor so they probably didn't have to be replaced. The catalytic converter will need to be replaced, prefferably by an oem part. This can be pretty expensive and should be considered before purchasing the vehicle.

I have replaced a few bad converters on late model subarus in the past few years.

Posted on Apr 18, 2009

mecanica03
  • 881 Answers

SOURCE: Check Engine Light came on with code p0420. Dealer wants $3900 to fix "b2 manifold and front pipes. Does this make sense. Are their better alternatives. I left the dealership without fixing it and the

if your car no present any problem i think that mechanic is a thieft.

Sometimes the fuel have mixtures that make the check light on , to reset disconnect the negative battery few minutes, no go more to this mechanic,good luck

Posted on Apr 21, 2009

  • 14036 Answers

SOURCE: Check engine light on. P0325, P0420 2000 Subaru

CODE PO420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD BANK I * CODE PO325 KNOCK SENSOR NO.1 CIRCUIT MALFUNCTION BANK NO.1 OR SINGLE SENSOR

Posted on Nov 14, 2009

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1 Answer

My 2005 chevy equinox keeps showing problem code P0420 How do I fix this problem?


0 2 sensor near the catalytic converter or

replace the catalytic converter

The downstream O2 sensor reading should be fairly steady. Typically the P0420 code triggers the Check Engine Light if the readings of the two sensors are similar.

Read more at: https://www.obd-codes.com/p0420
Copyright OBD-Codes.com

https://www.obd-codes.com/p0420

Feb 03, 2017 | Cars & Trucks

1 Answer

I have a saab 93 2002 with engine codes,p1110,p1312 and p1334 showing can anyone please tell me what they mean!


CODES P1312 AND P1334 These codes are related to the DI Module. Check the DI Module. Replace it if needed and clear the codes.

CODES P1110 Code P1110 is related to the Turbo Bypass Valve, check the vacuum lines at the Bypass Valve and especially at a vacuum sensor mounted on the firewall driver's side. The lines become loose with age and will pop off or can become disconnected when someone is reaching behind the for other reasons.

Jun 03, 2015 | 2005 Saab 9-3 2.0

1 Answer

P1334 code, what next?


No such DTC for that year and model

Feb 26, 2015 | 2000 Saab 9-5

1 Answer

Failed smog: P1334 code only (no P1230)


If this is a SAAB the DI cassette needs replacement. Easy fix but the part is high. Use only OEM part as the cheap stuff does not work. Plugs are under this unit so good time to replace them also.

Feb 26, 2015 | Cars & Trucks

1 Answer

Nissan Altima Check Engine Light - P0420 Code


You have a fail exhaust converter on bank # 1

Google the PO420 code & read up

Feb 05, 2013 | Nissan Altima Cars & Trucks

1 Answer

My check engine light is on, and the code is P0420, it's a Pontiac Grand Am. What does the code mean?


Go to Advance Auto. They have free troubleshooting of engine codes. The techs there can give you a list of causes for the code based on your automobile.

Dec 23, 2011 | 2003 Pontiac Grand Am

1 Answer

2006 chevy cobalt(85000 miles) check engine light comes on and stays on. I am getting the check engine light code p0420. Engine seems to be running smoothly.


http://www.obd-codes.com/p0420

TSB Number: 3316 NHTSA Number: 10017210 TSB Date: n/a Date Added to File: October 27, 2005 Failing Component:Electrical System Summary:Diagnostic trouble code P0420 may set on low mileage vehicles, or shortly after catalytic converter replacement
TSB Number: 3316 NHTSA Number: 10017210 TSB Date: n/a Date Added to File: October 27, 2005 Failing Component:Electrical System Summary:Diagnostic trouble code P0420 may set on low mileage vehicles, or shortly after catalytic converter replacement
there is a service bulletin for this.

http://www-odi.nhtsa.dot.gov/cars/problems/tsb/results.cfm?start=1&SearchType=DrillDown&type=VEHICLE&year=2005&make=CHEVROLET&model=COBALT&vehtype=PC&typenum=1&component_id=0&summary=true

Aug 02, 2011 | 2006 Chevrolet Cobalt

2 Answers

Check engine light on. P0325, P0420 2000 Subaru


CODE PO420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD BANK I * CODE PO325 KNOCK SENSOR NO.1 CIRCUIT MALFUNCTION BANK NO.1 OR SINGLE SENSOR

Nov 13, 2009 | 2000 Subaru Outback

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