Question about 1999 Volvo S80

2 Answers

Turbo Boost sensor A

The vehicle response is fine with some occasional backfiring engine sensation but I think is a matter of time before everything goes wrong. The check engine on, OBII reads turbo super charger boost sensor A circuit / Range Performance.
I have no idea how to start in diagnostic this problem nor some manual to follow in how to repair the problem.
Please advise in this issue. My Volvo is a S80 t6 1999
Thank you all for any helpful information

Posted by on

  • 2 more comments 
  • mistjef Oct 27, 2008

    but the code is P0237 Turbo/superboost sensor A circut low imput

    it is a 2001 Volvo S80

  • VOLVORACING1 Nov 14, 2008


  • Jeff Colvin Dec 13, 2013

    need to find the turbo boost senior

  • Jeff Colvin Dec 13, 2013

    noone ever tell you where it it is on the car



2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

My ford f- 350 is doing the same thing, OBDII is telling me its the Turbo Super Boost Sensor A . What the heck is that! I called Ford, they never heard of it!!!!

Anyone can help? Its a 7.3 Liter Diesel 1999 Model Ford F350 Super Duty.

Posted on Dec 25, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 88 Answers

Hi what was the code (p 0244)sounds like you need to replace the the turbo wastegate valve .sounds to me like its overboosting as if the charge from the turbo gets too hot the engine will misfire thus causing damage to engine ,the waste gate valve is there to prevent over pressurisation

Posted on Oct 27, 2008


1 Suggested Answer

  • 2 Answers

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

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

2003 Nissan Terrain 2.7 isn't revving up after starting it, cuts out when left running. Was put on a computer code PO235 showed up what is it? Please advise?

Looks like a boost sensor or part of the circuit is malfunctioning. I think you meant a Nissan Terrano? It could be something as simple as a sensor went bad or a hose came loose, to major turbo or engine damage. I would check to see if any of the intake hoses are not connected or loose first, then go from there. The vehicle's computer knows the ballpark value of the boost pressure, but the sensor is sending no signal (or completely erroneous values), so the computer cuts fuel in order to prevent serious engine damage.

P0235 Turbocharger Boost Sensor Circuit Malfunction

Nissan Terrano II

Feb 02, 2016 | Nissan Cars & Trucks

1 Answer

I have a 2003 f250 6.0 turbo it starts ruff and on highway when i get to 70mph and hit a hill it will slow down no matter how gas i give and if i floor it black smoke come out

these trucks are known for the egr cooler failing but I think you have turbo issues. maybe the wastegate is stuck open and not making any boost. check your boost guage (normal amount of boost?) make sure your vacume lines and wiring is atached with no leaks. Any check engine light?

Mar 12, 2013 | Ford F-250 Cars & Trucks

1 Answer

Turbo not kicking in like it should cant find no leaking pipe and turbo seems to be working fine

In general the possible causes could be:
- Boost pressure sensor harness is open or shorted
- Boost pressure sensor circuit poor electrical connection
- Faulty boost pressure sensor
- Faulty Turbo/Super Charger
- Engine over temperature.
- Ignition misfire exceeds the calibrated threshold.
- Faulty Knock sensor (KS)

I would doubt its the turbo as you said it seems to be working just fine (unless the wastegate is stuck open/wastegate seal is cracked). Also if the ignition misfire exceeds the claibrated threshold then I would think you'd hear that in the engine running normally. I would say locate the sensor and replace it?

Hope this helps

Dec 05, 2012 | Cars & Trucks

2 Answers

Subaru wrx sti turbo

hi that sounds like the idle control sensor or tps throttle position sensor, if the i.c.s is stuffed you wont be able to boost and ur revs will be all over the show going up andown when car isnt moving hope this helps5

Aug 24, 2009 | 1997 Subaru Impreza

1 Answer

Overboost condition

Hello, your car is probaly a variale vane turbo fitted and all you need to do is seperate the VNT part of the turbo, give it a good clean with brake/carb cleaner get rid of the sticky oily residue which makes the vanes stick on turbo causing a overboost fault, a delearship might tell you that your car has been remapped at some time setting the boost RPM at like 14 or 1500 and it should be like 2200 I do not know the specifics on your vehicle but a good auto manual will tell you at which RPM your boost should build. I would have a diagnostic done and see if this is your problem, if so do the above and go back and see if it fixed your overboost problem. If not, you will need your ECU remapped. I hope this fixes your problem!

May 27, 2009 | 2005 Volkswagen Jetta

1 Answer

Will cut out at speed. And then starts again.

boost too high,theres a boost cut out that interupts the engine by cutting out split seconds to stop overboosting,is it stock or has there been mods done

Mar 07, 2009 | 1995 Subaru Impreza

1 Answer

Engine misses

Check your Distributor Cap, Rotor Bug, Wires and Timing. This is Throttle Body Injected Right????

Jan 15, 2009 | 1987 Chevrolet Camaro

1 Answer

Loss of power going up grade

sounds like a very common problem on turbo vag vehicles,the variable vains are sticking in the turbo,your fault code would have said....turbo boost pressure not reached.....common with v v t turbos,run a good quality fuel cleaner through it ,if that doesnt work then a new turbo is the only cure

Dec 29, 2008 | 2004 Audi A4

Not finding what you are looking for?
1999 Volvo S80 Logo

2,696 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volvo Experts


Level 3 Expert

77947 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Volvo Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides