Q: P0236

asked by on December 07, 2016

Hi, I have a 2012 Jaguar XJ x351 5.0L V8 Supercharged 510hp and engine light came on a few months ago showing this error code P0236 Turbocharger Boost Sensor A Range/Performance please help me with this, so far I have replace the boost sensor at the back of the engine, checked for vacume leaks, checked air filters and air sensors, updated the OS I dont know what else to do. everything works well on the car there is no power loss or anything. The only thing thats out of ordinary is a bit of rattling noise it seems like from the superchagrer crank, for the first few minutes when I turn the engine on and then disapear and the car works normaly again. Thank for your help in andvance

My car has 40000 miles.
My car has an automatic transmission.

Hello. Your vehicle is equipped with two boost pressure sensors. One at the front of the engine near the throttle body, and one at the rear of the engine. I would verify that the boost sensor you replaced is the correct one, for engine bank A. It may also be possible that there is an issue with the sensors’ electrical circuit, perhaps due to a wiring issue or poor contact at the connector, or even with the circuit inside the engine computer. In some cases the fault can occur inside the computer’s circuit board, which would require repair or replacement of the computer. I would start by making sure the correct sensor has been replaced, and that the circuit is functioning correctly. If you are unsure I would recommend having a professional technician, such as one from YourMechanic, come to your location to diagnose what the cause of your boost sensor fault may be.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Recommendation on choosing an SUV to buy--Honda CR-V or RAV 4
Yes, but a Rav 4 (https://www.yourmechanic.com/scheduled-maintenance/toyota-rav4/) without a doubt would outlast it by far. I'd buy the Rav 4. They are going to last longer. Hondas (https://www.yourmechanic.com/scheduled-maintenance/honda-cr-v/) used to be really solidly built, but they've gone downhill in the last...
Symptoms of an AC condenser going bad.
The condenser (https://www.yourmechanic.com/services/ac-condenser-replacement) if it was not cooling properly, will cause the switch to shut off the A/C, and then once it cools enough, will allow the A/C to come back on. It would be hard to know if connection...
Poor idle low on stop light
This may be likely related to what is called an idle air control valve/module. This unit regulates the air flow into the motor at idle or low speeds as it is mixed with fuel prior to being injected into the...
Can I use a battery charger designed for deep cycle batteries to charge a regular car battery?
Yes you can. A deep cycle battery is not much different from a regular battery except it is designed to give out a small amount of power over a long period where a regular battery is designed to give out...
Are all the motor mounts the same on the sides and in the front?
No, they aren't. Typically there are four main mounts that support the motor and the transmission. Depending on the parts source you buy from, it is important to be specific about the position of the mount. Mounts may or may...
Check engine light is off and when I turn on the key the car won't start. Just happened after changing the clutch kit.
Hi there. If the vehicle ran before you performed the job for the clutch exchange, then back track the work you had performed and look for anything that is not plugged in. Most likely, the crankshaft sensor was unplugged and...
Hello . When passenger airbag sign is off , does it mean that all the airbags are off or only the passengers airbags ? Thank you
If there are no warning lights on when the engine is running, all of the airbags are active. That is the default mode. About twelve years ago the DMV required that the driver be given control of whether the passenger...
My oil pressure is low light came on
The oil pressure light will usually come on when a few things could be happening. Either the motor is in fact low on oil, the oil pump could be failing or the oil pressure sending unit (https://www.yourmechanic.com/services/oil-pressure-sensor-replacement) is not working...
How long can Chevrolet Equinox 2008 transmission last? What's max.year of durability& what could be the issue of it's breakage?
There is no set life span for the transmission. I have seen many go beyond 200,000 miles and not have an issue and others breakdown after the first week of ownership. The key is to follow the service manual for...

Related articles

A Buyer’s Guide to the 2012 Nissan Rogue
While While the Honda CR-V and the Toyota RAV4 generally get the most attention in the crossover utility vehicle (CUV) class, buyers should take a look at the 2012 Nissan Rogue. The second-smallest model in Nissan’s line of SUVs and...
A Buyer’s Guide to the 2012 Mitsubishi Lancer
If If you’re looking for a compact that delivers a sporty driving experience, the 2012 Mitsubishi Lancer just might be the right car for you. With a variety of models to choose from, including both a hatchback and high-performance option,...
A Buyer's Guide to the 2012 Lexus GS450h
The The 2012 Lexus GS450h is for those who want to drive a hybrid, but would prefer to still enjoy a luxurious and safe ride. Fortunately, as this sedan proves, going the hybrid route doesn’t have to mean you lose...