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Vacuum leak my 06 s60 has 3 codes p0240,p0100,p0089 any ideas

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ftw1952
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SOURCE: Error Code P0240 on 2001 Ford Windstar

The catilytic convertor is at fault and needs replacing.
Have it checked first for a 02 sensor can throw this code as well. If the convertor is turning red on the outside it is junk status. Also the engine will sound like its starving for fuel

Posted on May 17, 2010

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I have change pressure sensor DENSO 6100 on Nissan X-trial 2005 It was p0089 error code now I have two p0089 and p1275


code p 0089 refers to fuel pressure regulator---performance problem===causes fuel pressure regulator---mechanical fault
code p 1275 refers to heated oxygen sensor (HO2S) 1--response time===causes--- HO2S--fuel pressure--injectors--intake air leak--exhaust leak--MAF sensor
as the pressure regulator ( fuel pressure) appears in both codes I would be paying attention to that unit first

Aug 19, 2015 | 2007 Nissan X-Trail 2.2D

1 Answer

What does code p0240 mean


The code refers to the turbo boost pressure circuit range / or diminished performance. So ether the pressure sensor failing or the vacuum hoses are leaking somewhere.

Jul 06, 2014 | 2009 Volvo V50

1 Answer

I have a 2005 cobalt 2.2L. P0240 keeps coming up! I have changed the cat and both 02 sensors! And the codes still comes up! One day I ran some injector cleaner in the fuel tank and cleared the code and it...


code p0240 refers to manifold absolute pressure(MAQP) sensor B TC system--range /performance problem===causes---intake/exhaust leak---hose connections--MAP sensor
Check the exhaust system for leaks especially around the manifolds and gaskets. Check all vacuum hoses for leaks. Finally replace the MAP sensor. Run code reader to reset the CPU

Nov 12, 2013 | Cars & Trucks

1 Answer

Has codes p0240,p0100,p0089 replaced all sensors still getting codes


With the engine off and the battery negative cable disconnected, check all electrical connections at the o2 sensors, MAF and elsewhere. Under-hood temperatures tend to cause some oxidation on the terminals themselves. I've seen this issue with nearly every Volvo I've owned. Use electronics cleaner and dielectric grease on the connectors, especially on the MAF connector.

P0240 (Catalyst working below efficiency threshold) means the downstream (2nd) o2 sensor is not moving. The reason for this sensor's existence is pretty simple - detect catalyst efficiency and possibly failure in the field. The upstream sensor must be in good condition and not 'lazy', meaning it is slow to respond to the oxygen levels coming out of the exhaust. It must be quick to respond. The downstream o2 sensor, however, usually doesn't change state as much, meaning the catalyst is doing its job. The idea is that if that downstream sensor starts to mimic the upstream o2 sensor activity, catalytic function can be inferred to be less than normal. Ensure the connections are good on both sensors. Replacing only the upstream o2 sensor will not cure this. Catalytic convertor failure is rare in the field but if you have been running rich, it's possible a large quantity of unburned fuels have destroyed or eroded the substrate. The only way to tell is put a scan tool on the car and monitor both sensors, capturing any freeze frame data along the way. Upstream sensor should be rapidly changing state and downstream should be changing state much more slowly.

P0100 (MAF circuit - malfunction) usually points towards wiring issues or problems with the connector, especially if the MAF is known good.
P0089 (Fuel pressure - regulator) could be a worn fuel pump, clogged filter or the regulator itself. Have the fuel system pressure tested, verifying components along the way.

If all checks pass at this point, it is possible that the connections at the ECM itself need cleaning (do not unplug the ECM with the battery negative cable connected). If you perform this procedure do so with extreme caution and scrupulous cleanliness. Allow the cleaner to completely evaporate off the terminals or there could be a serious short condition that will destroy that 600 dollar computer.

Oct 17, 2013 | Volvo S60 Cars & Trucks

1 Answer

07 passat code p0642 related to other codes


code p0642 refers to ECM-knock control defective or sensor reference voltage A circuit low or system voltage- malfunction===causes for ecm is ECM--- for voltage A wiring is short to positive --- for system voltage ---wiring--poor connection--battery---alternator
code p2014 refers to intake manifold air control actuator position sensor/ switch bank 1 circuit malfunction=== causes --wiring --intake manifold air control actuator position sensor/switch
code p0106 refers to manifold absolute pressure MAP sensor/barometric pressure sensor-range/performance problem===causes--intake /exhaust leak--wiring--MAP sensor---Baro sensor.
code p0089 refers to fuel pressure regulator --performance problem===causes--fuel pressure regulator--mechanical fault. I would suggest that you have the battery load tested and the alternator checked for correct output as it may be the common reason for the codes .P0089 will not be electrical as it being a mechanical fault then the regulator needs replacing

Jul 23, 2013 | Cars & Trucks

2 Answers

Nissan sentra 4cyld


Hi, you have provided trouble codes p0100 AND p1605.


Trouble Code: P0100


Mass Airflow Sensor Circuit Malfunction
Possible Causes:



Air Intake leaks located after the MAF sensor assembly MAF sensor signal circuit is open, shorted to ground or power MAF sensor has failed PCM has failed


Trouble Code: P1605

A/T Diagnosis Communication Line Malfunction

Possible Causes:


TCM communication line circuit is open or shorted to ground TCM communication line circuit shorted to VREF or power (B+) TCM or PCM has failed TSB 01-004 (01/01) contains information related to this code
For the P0100, check the connector on top of the MAF sesnor for looseness or corrosion. Connector is on top in piocture below. jturcotte_361.jpg

Mar 25, 2011 | 2000 Nissan Sentra

1 Answer

I have a 2008 VW Passat. When the engine light came on I stopped at Autozone and they gave me the following codes: P0089, P0642, P2004. Anyone know what they mean?


CODE 89 IS FUEL PRESSURE REGULATOR 1 PERFORMANCE.CODE 642 SENSOR REFERANCE VOLTAGE CIRCUIT "A" LOW.AND CODE 2004 IS ITAKE MANIFOLD RUNNER CONTROL STUCK OPEN.CK FOR BAD OR MISSING VACUUM LINES.IS IT STILL UNDER WARRANTY

May 05, 2009 | 2008 Volkswagen Passat Sedan

4 Answers

Service engine light on showing code p0089


Diagnostic trouble code P0089 - The ECM commands the Bosch high-pressure fuel pump to deliver a specific fuel rail pressure - that can vary up to 23,000 psi depending on load and speed. The actual pressure is monitored via the fuel rail pressure sensor. If the fuel rail pressure varies more than desired or if commanded fuel pump flow is 100mm3/second or less, DTC P0089 will set.

Corrective action includes measuring the fuel rail pressure using a Tech II scan tool, then compare that to commanded fuel rail pressure with the engine running at 2000 rpm. The difference must be less than 20 Mpa.

A blockage in the fuel tank or plugged fuel filter could cause this fault (excessive vacuum in fuel line). If there is less than 5 in Hg of vacuum when measured at the fuel pressure test port at 3000 rpm, the fuel pressure regulator could be defective, and may need to be replaced. The fuel pressure regulator (FPR) is a sub assembly located on the Bosch high-pressure fuel pump.

Jul 30, 2008 | 1996 Chevrolet Cavalier

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