Question about 1999 Volvo S80

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I have a volvo s80 t6 with error codes 171 and 174 it says lean air fuel mixture the engine runs rough sorta like its skipping. What needs to be checked and possible replaced ?

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2 things to check air leaks from air box tomanifold where it meets at engine check mass air flow sensor and oxygen sensor start with common sense things first

Posted on Apr 16, 2009

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Dec 03, 2015 | 2000 Volvo S80

1 Answer

01 volvo s80 t6 fuel adaptation bank 1 code P1174 iv looked every where on the web an cant seem to find anything on the code.


t means that your fuel system has reached its limit of compensation for the fuel system. As the engine is driven if the fuel system computer sees that the fuel mixture is too rich or too lean it begins to compensate by increasing or decreasing the amount of time the injectors are on. When it reaches its limit it throws the code. It is usually a vacuum leak or bad oxygen sensor that sets the code

Apr 14, 2015 | 2001 Volvo S80

1 Answer

What causes this Volvo S80 T6 "Engine System Service Required"


This message could have been brought up for any number of reasons and the fact that they are fully computerised makes them very complicated (eg. Sensor failure elecronic failure, misfiring mechanical failure) without the right tools, you will need a volvo vida code reader (check ebay). Otherwise you will have to go to a volvo repairer to get the car scanned for error codes. Note; a independent volvo workshop is generally cheaper for the same thing.

Jun 19, 2014 | 2001 Volvo S80

1 Answer

2000 Volvo s80, t6 (158k). yesterday it started to feel like it was staving for gas and might stall, but never did. If I keep the gas pedal steady with no burst of acceleration car skips along huffying and...


MANY THINGS WILL CAUSE THAT PROBLEM. COULD BE FAULTY ELECTRONIC THROTTLE SYSTEM MALFUNCTION.COULD BE FAULTY MAP SENSOR, FAULTY ECM, RESTRICTED FUEL FILTER OR WEAK FUEL PUMP.RESTRICTED EXHAUST SYSTEM. FAULTY TURBOCHARGER. BEST TO GET VECHICLE CODE SCAN TO SEE WHAT CAUSING CHECK ENGINE LIGHT TO TURN ON.

Sep 11, 2011 | Volvo S80 Cars & Trucks

1 Answer

S80 T6 No oil pressure warning light flashes when


make sure the oil level is up to full. sorta sounds like its low and when you go around a corner the oil sloshes away from the pickup tube

Apr 03, 2010 | 2000 Volvo S80

2 Answers

Riding rough what do i change with these codes po171, po174, po300


171 and 174 are lean mixture codes, 300 is a random misfire (any cylinder). Check for a vacuum leak, listen for a hissing noise with engine idling.

Mar 04, 2010 | 2002 GMC Sierra 1500

1 Answer

Volvo v40 direct injection(early 2000)rich running.lumpy idle.had to replace lambda again 2nd year in a row to get it through mot.still the same.bought a new cat. anyone know which sensors play up? perhaps...


hi the MAF is more than likley to produce the wrong fuel to air mix, all the lamda realy does is keep an eye on the burnt fuel deposites and then sends the signal back to the ecu, which in turn then opens or closes the mixture , but if it is sending the correct signal and the MAF is not reading it right this will in turn cause your system to run either lean or rich, it may actually not be faulty as such , as it is still working according to the ecu so you wont get any error codes hope that helps sorta

Feb 12, 2010 | 2000 Volvo V40

1 Answer

1999 VOLVO S80 T6 OPERATORS MANUAL FREE'


my volvo s80 t6 air conditioning not working well and often cause over heating. why?

Jan 03, 2010 | 1999 Volvo S80

1 Answer

I have a 2000 volvo s80 t6 and have fault codes 1171 & 1181. What does that mean?


I think that you have a contaminated or bad Mass Air Flow (MAF) sensor. It's located by the engine air filter housing. You can get a used one online for less then 100.

Aug 11, 2009 | 2000 Volvo S80

1 Answer

PO442


check to make sure your the fuel cap is on this is a fuel/ small enissions leak near fuel tank/ it could be the( fuel resonator or evap caniste)

Jan 24, 2009 | 1999 Volvo S80

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