Code P1271

[CatB1]

Evening, I have a 2009 2.2d Rav4 & have code P1271. There was a post in April 2016 about the same problem but the member never came back on here to say whether changing the fuel pressure regulator solved the problem. I changed the fuel filter & the fault is still present.

My question's are, is the code P1271 definately a fpr fault? Does anybody know the fpr part number is?

[Devon Aygo]

INSPECT PRESSURE DISCHARGE VALVE

1. 

   Text in Illustration

   *1	Component without harness connected (Pressure Discharge Valve)

   Disconnect the pressure discharge valve connector.

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance
   Condition Specified Condition 20°C (68°F) 0.85 to 1.05 Ω

3. Reconnect the pressure discharge valve connector.

4. If the resistance is outside specified condition replace common rail.

[Devon Aygo]

There are 4 variations of the rail, would need your chassis number to get the correct part number.

[CatB1]

Thanks for the reply Lee, will check the resistance & find chassis number just in case.

 

Pete

[CatB1]

Hi Lee, another question, where is the pressure discharge valve?

Chassis number JTMBA31V20D017201, LOL, can't see this being a cheap item.

 

Pete

[Devon Aygo]

Its in the end of the common rail, remove the plastic engine cover and follow the four injector pipes towards the front of the engine they all join the common rail and the sensor is in the end of the rail. The correct rail part number on your car is 23810-0R040

[CatB1]

Thanks very much for your help.

 

Pete

[CatB1]

A quick update, one of my Avionic colleagues checked the resistance of the pressure discharge valve last night. Took two readings, one with clamps attached to the connectors & one directly from the AVO, the values measured between .95 to 1.05 ohms. When the car is cold it seems to perform as normal, however, when it's up to running temperature the performance drop's significantly. I'm no expert, but it indicates that fuel pressure is satisfactory when engine is cold, I'm wondering whether the ECU is allowing the pressure discharge valve to bleed fuel off & back to the tank. Think it could be time to send it to the dealer.

 

 

Pete

[Ensar]

Hello there. Did you solve the problem? I have the same problem with my car (p1271, Verso, 2011). Is it really the fuel pressure regulator faulty? Thanks. 

[flash22]

http://www.baileysdiesel.com/wp-content/uploads/2014/03/P1271+1272.pdf

 

when was the fuel filter last changed ??

[Ensar]

12 hours ago, flash22 said:

http://www.baileysdiesel.com/wp-content/uploads/2014/03/P1271+1272.pdf

 

yakıt filtresi en son ne zaman değiştirildi?

Thank you very much for your quick response and important information you sent🤗. The information in the pdf file is really important. We bought our car (verso) just 2 weeks ago from a foreign person. We changed the engine oil, but we haven't changed the diesel fuel filter Bi yet. We do not know when the filter was last changed. Today I measured the Pressure sensor (regulator) and found a resistance value of 2.7. I think the valve is faulty. I also suspect EDU. I found a video today. The owner of the car found and corrected the same error in the same model car. I will try to measure EDU if I can do it tomorrow. 

 

[Ensar]

On 27.04.2021 at 11:27, flash22 said:

http://www.baileysdiesel.com/wp-content/uploads/2014/03/P1271+1272.pdf

 

yakıt filtresi en son ne zaman değiştirildi?

Dün arabamızı toyota teknik servisine götürdük. Injektor sürücüsünün arızalı olduğunu söylediler. Tamir için 1500€ istediler. Yedek parça arıyorum. Fakat parça numarasının sonu aynı değil. Bizdeki DENSO parça numarası 131000-1565'tir. Fakat bulduğum yeni yedek parçaların numarası ...1566, 1567, 1568 vb. Numara aynı olmak zorunda mı? Ayrıca yeni parçanın programlanması gerekiyormuş. Çok zor bir problem. 

[flash22]

Sorry i do not speak or read Turkish

get a second opinion from a diesel specialist

[Ensar]

52 minutes ago, flash22 said:

Üzgünüm türkçe konuşmuyorum ya da okumuyorum

bir dizel uzmanından ikinci bir görüş alın

Excuse me. I sent my message in Turkish by mistake. Thank you very much for your help.
We took our car to Toyota technical service yesterday. They said the injector driver was malfunctioning. They asked for € 1500 for the repair. I'm looking for spare parts. But the end of the part number is not the same. Our DENSO part number is 131000-1565. But the number of new spare parts I found is ... 1566, 1567, 1568 etc. Also, the new track had to be programmed. It's a very difficult problem.

[Ensar]

Hello there. We solved the problem. (p1271 error code). we fixed the error in our car. The defective part was the injector driver (Injektor, Driver = EDU). We bought a used (second hand) Driver (EDU) from the Internet and mounted it on our car. There was no need to program Edu into the car. There was no need to Code the part or introduce it to the car. It worked directly.

The toyota number of the part we bought was the same as the old part. But Denso number is 1568. Denso number doesn't matter. No need to consider the Denso number. The mechanic at the Toyota dealer deceived us and lied. No need to code or introduce the part to the car. Direct part plugs in and works.

Before installing the part, you should clean some electrical wiring points in the car and apply copper paste (or spray). Please watch the video below and read the experience at the other link. (Toyota technician had offered 1500 € for repair. A very large pile. Used spare parts price is between € 80-200.)

Extract from website:

"Our vehicle is Toyota Verso 2010-2011 Diesel automatic transmission. Error code p1271 occurred in our car and the engine went into emergency mode. Engine power has decreased / limited. The gearbox was shifting very badly. Our car was shaking as if a vehicle from behind was hitting us during gear change.

In the workshop / repair shop our vehicle was connected to the computer and the error code p1271 was read. We also read the fuel pressure regulator circuit error message.

The Toyota dealer (authorized technical service) asked ? 1500 to repair this malfunction. He also said that EDU needs to be taught / coded to the car. The master at the Toyota dealer lied.

I bought a used (second hand) EDU after reading the posts on this topic and watching a video online. I attached / assembled Edu myself to the vehicle. The error in our car has disappeared and the car has recovered. There was no need to code Edu into the car. EDU can be installed and operated directly in the vehicle. We did not need new software.

Before replacing the Edu, I sprayed copper spray on the ground cables mentioned in this topic. In addition, our car's radio display (display) was interrupting. The screen / display was turning on and off by itself. I'm sure our car had an electrical problem. And after the copper spray, the radio was straightened without yet installing the edu in the car.

I bought the used driver (edu) for 180 ?. Part number: It was enough for our car to have the same Toyota number. Denso number doesn't matter. It may differ. (Toyota part number is 89871-20080. Our denso number is 131000-1565. The denso number of the part we purchased is 131000-1568. - Rav4 , Avensis ) Just consider the toyota number.

Thank you very much to everyone who opened and shared this topic and helped a lot with the repair. I wish you a good day.
Here is the link for the video that might be useful:

https://m.youtube.com/watch?v=hNWB4Oz72P4