Jazz only doing low thirtys to gallon should apparently be in fourtys.car just been serviced,checked computer no faults,all tyres pressure correct,egr valve clean and working well.stumped now checked everything can think of,the car is a 1.2 i-dsi s 2007 model,the engine sounds and runs sweet as a nut and only done 60000 miles,any ideas?
Transmission or manual clutch slip and/or poor driving habits need to be looked at if all else is good.
SOURCE: 1997 ford explorer check engine lite is on.Code
you probably have blocked passages in the intake manifold. remove the egr and check the port for a clog. you can scrape most of the carbon out with a pick or screw driver and then use some spray carbon cleaner in there. also check the metal exhaust line to the egr
Testimonial: "i looked at what was discribed and that wasnt it.Good thought thouh"
SOURCE: High oil Consumption, BMW M5
Look for Castrol TWS 10W60 Motor Oil. This car should not burn so much oil, you need to use a different kind. It is recommended by BMW as well. I also heard the VANOS isnt an issue anymore, can be fixed with a different MAFF. Good luck!
SOURCE: SERVICE ENGINE LIGHT ON FAILED EMISSIONS
Yes, take it back. The might of replaced the Egr valve to turn off the light. Don't let them charge you for retesting it, that's why you took it in in the first place.
SOURCE: Very high fuel consumption on 2002 Honda Odyssey
transmission slipping dragging brakes.timing off worn timing belt .bad spark plugs + wires +coil.defected valves and worn cam shaft.use scanner to check oxygen sensor. run engine 5 minutes look at scanner . should read closed loop . if read open loop replace oxygen sensor.
SOURCE: egr valve cleaning
Usually the EGR valve problems show the fault code P0400 - Exhaust Gas Recirculation Flow Malfunction
What does that mean?
The exhaust gas recirculation (EGR) valve is vacuum controlled valve that regulates the amount of exhaust gases that re-enter the cylinders. The powertrain control module (PCM) determines how much based on engine load, temp, and other conditions. If the PCM detects that the amount of exhaust gases entering the cylinder were insufficient or non-existent, this code is set.
Symptoms
No symptoms will likely be noticed by the driver other than the MIL (malfunction indicator lamp). However, non visible symptoms will be increased combustion temperature and increased Nox emissions.
Causes
A code P0400 may mean that one or more of the following has happened:
* Plugged EGR passage which restricts the flow of exhaust gasses
* Faulty EGR solenoid
* Faulty EGR solenoid wiring/harness
* Vacuum lines damaged/disconnected to the EGR valve solenoid or to the EGR valve
* Faulty EGR valve
Possible Solutions
Since EGR valve designs are different, no one test will suffice:
* Using a scan tool, operate the EGR valve with the engine running. If the engine stumbles, the problem was likely intermittent wiring problem or intermittent blockage problem
* If engine doesn't stumble, operate the EGR valve manually, if possible. If engine doesn't stumble and die, the ports are likely plugged. Removal of valve and cleaning of all ports will be required
* Checking of solenoid can only usually be done with a scan tool, because most solenoids operate with a duty cycle of voltage, rather than constant voltage
* Check all vacuum lines, hoses, etc for any damage
* Visually inspect the solenoid harness and the solenoid for damage
* Replace EGR valve
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