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My service engine soon light went on. I had a diagnostic run on my 2001 infiniti I30..it showed a code p040. The car does not run rough and starts right up..what does this mean?

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6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 13 Answers

SOURCE: Timing chain on 2000 Infiniti I30

timming chain not belt . its a really big job i suggest the dealer.to much work and u need a lift to do the job!

Posted on Jun 22, 2008

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  • 54 Answers

SOURCE: Service engine soon light

in your manual inside your glove box it will tell you how to restet the service due soon message, or the mechanic should do it when he/she services your car.

Posted on May 16, 2009

pingman37
  • 58 Answers

SOURCE: MY 2001 INFINITI QX4 KEEPS SAYING SERVICE SOON

First off, make sure that the gas cap is tightened beyond three clicks. If it is and has been then there are many things that could be causing the light to come on. But let me start by assuring you that it is not something that requires immediate attention. The sole purpose of the service engine light is to detect malfunctions of emissions related components. If the gas cap isn't tight, the computer system detects an incorrect amount of pressure inside the tank due to vapor leaking out of the filler neck. If the cap is tightened after a period of time the computer detects the right pressure and the light will go off. However, on QX4's the most common cause of the light is oxygen sensors, or cam and crank position sensors, and finally intake valve timing control sensors or solenoids. O2 sensors measure the amount of oxygen in the exhaust gas. Normally I have seen that in damp and wet conditions these sensors are more likely to intermittenly give false readings. That being said, although the SES light is not an emergency situation, it will need to be addressed at some point, as the Engine control module takes the readings from these various sensors and automatically adjusts things like idle control, and air fuel mixture ratio, and eventually will to some point affect the performance of the vehicle. I have seen folks drive 100K miles with a service engine light on, so if you don't want to spend a 200 or so dollars right away, I would take the car to autozone, have the codes retrieved, and report back to this forum, at that point I would be able to advise you a little further. But more than likely you could continue driving the car without any driveablility issues.

Posted on Jun 16, 2009

  • 1 Answer

SOURCE: infiniti i30 bose stereo volume will not change

i have this deck...just put it on craigslist...if you pop out the heater vents the screws become visible to remove the unit. The screws on the side of the deck itself tend to be in tightly...but they will come out. my name is justin 2539051585

Posted on Feb 05, 2010

  • 743 Answers

SOURCE: 2001 buick century 3.1 ltr abs light on , service

You could be encountering computer failure. Needs to be looked at.

Posted on Mar 07, 2010

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1 Answer

98 Infiniti I30 Started running rough and smelled of gas. Replaced sparkplugs and knock sensor still no change? help


If you're finding it difficult to service/repair your car, get one of those online manuals.

You will not have to wait for others to answer, or rely on mechanics and all.

www.reliable-store.com

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2001. Why is it hard to start at times?


If the service engine soon light is on ,have you had it checked for DTC'S - diagnostic trouble codes ? When is it hard to start , first time you start it in the morning , or any time , randomly ? You should have a diagnostic scanner hooked up to check engine sensor data parameters .

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hi, let me get some more info so i can help you with your issue. First ques. does your "chk engine" light come on? is your vech. a manual or automatic trans.? and how long has this issue been acting up and is it getting worse? when is thelast time you had service done? Get back with that info and i will start thinking about whats going on. Hope to hear from you soon.

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Diagnostic touble code on emission test code p1440


Type: Infiniti OBD P1440

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I have a 2001 mustang bullitt that is showing service engine light on. Took it to mechanic and he put 2 different machines on it to show code for problem. No codes coming up and he can't turn off the...


There is a diagnostic procedure in the factory service repair manual for engine light lit ,no codes . Did you take it to ford dealer ? MIL - is referring to check engine , service engine soon etc...
  • MIL always on when engine is running (no DTCs):
  • MIL circuits
  • For Focus, Mustang, Town Car, Continental, LS6/LS8, Escape, Windstar, F-150, Expedition and Navigator/Blackwood:
  • Instrument Cluster, Section 413-01 of the Workshop Manual.
  • All Others:
  • GO to NB1

SERVICE ENGINE SOON indicator After the engine is started, the SERVICE ENGINE SOON indicator will prove out for a duration of three seconds. If the instrument cluster does not receive a message from the PCM within five seconds, the instrument cluster will illuminate the SERVICE ENGINE SOON indicator and log a diagnostic trouble code (DTC).

  • An indicator is inoperative/always on - SERVICE ENGINE SOON
  • Circuitry.
  • Bulb.
  • Instrument cluster.
  • PCM.
  • GO to Pinpoint Test P .

PINPOINT TEST P: AN INDICATOR IS INOPERATIVE/ALWAYS ON - SERVICE ENGINE SOON CONDITIONS DETAILS/RESULTS/ACTIONS P1 CARRY OUT THE INSTRUMENT CLUSTER SERVICE ENGINE SOON INDICATOR ACTIVE COMMAND Trigger the HEC active command MIL.
  • Did the SERVICE ENGINE SOON indicator illuminate?
Yes REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.

No INSTALL a new instrument cluster; REFER to Instrument Cluster . CLEAR the DTCs. REPEAT the self-test.

Jul 18, 2017 | 2001 Ford Mustang

1 Answer

2001 Bonneville! Several weeks ago, had trouble turning the key in the ignition - sometimes would turn, sometimes wouldn't. Then the Service Engine Soon light came on and the car stalled out a few times...


Service Engine Soon came back on and the car is again stalling ????? Did you have it checked for DTC'S - diagnostic trouble code's ? Service engine soon light on , codes will be present !

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Horrible Random misfire in car


This is common issue with Infiniti I30 1999-2001.

When the coil packs fail they burn up components/parts on the engine computer ECU. If the problem gets worse, you will need to replace the ECU or have it rebuilt.

Is your check engine light on?
You might also get code P0505
Technical bulletin also recommends to replace
The Idle Air Control Valve MUST be replaced prior to re-installation of the ECM, or immediate damage to the computer will occur again.

http://www.myairbags.com/product/ecu-infiniti-i30-2000-2001
Common Failures:
  • No Start, Hard Start, Engine Stalls
  • Rough Idle, High Idle, or Idle Up and Down
  • Misfire to one or more cylinders
  • No signal to the ignition coils
  • Engine Trouble Codes For Idle Control Valve (IACV)
  • No Communication With Computer
  • Replacing IAC Does Not Fix The Problem

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It would help if you provided some type of code, and its something wrong in the engine

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2001 Ford F-150


Overdrive light flashing is a warning to alert the driver there is a problem with the transmission . DTC'S - diagnostic trouble codes are stored in the transmission control module . Have it check !

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