Closing the throttle, the duty cycle drops off at 50% right to 0% right after dropping below the. Car ran rough as not running on all cylinders. Side note, I didn't know you could operate these manually. To start with, lets get a vacuum reading at idle and at 2500 steady. Take it out of gear and bog is gone but throttle response is still off. With a throttle snap or some pedal pumping, the upstream goes rich and then lean after decel.
The low vacuum, as far as I know from reading, indicates either a vacuum leak at the intake or timing issues. A flashing check engine light indicates a missfire, which sounds like what's happening. You can stand up and reach under the manifold and work it on. Granted that is not satisfactory but that said, everything looked good. This one only lasted 20k miles. This angles the coolant passages in the head and puts the coolant overflow tank higher in the air, encouraging bubbles to go where they're supposed to go.
Unfortunately, all the Mazda 3 captures I have don't show loop status But, you did mention previously that the long term trims were at -20%, and the short terms were near zero. Posted on Dec 15, 2010 when the ac compressor comes on, the engine should rev up a little to compensate for the strain of the compressor and if this is not happening, then you would get that rough idle. I have no idea how that could cause this issue. I replaced it a 4 berkeleying hour job! This allowed the oil to leak when engine was cold but as the motor heated up it expanded the crimp on the metal washer so it did not leak when hot. If the butterfly responds normally with the engine off, but misbehaves with the engine running, then let's go towards another input. They've tried the spark plugs, resetting some code, and finally cleaned the throttle just today they did the throttle so we will see if it is better. I have a mazda 3 sport and my car does this as well.
Part not in stock so will repair when part in stock. Made appointment with dealer to fix prob Dealer installed new motor mount, issue resolved. Replaced pump and housing, pulley and drive belt. Was sticking open causing engine not to maintain proper temperature. It occurs when the car is under load and the driver depresses the throttle from 2500-3500 rpm.
Standard tune-up that replaced spark plugs. We used the depression side. Problem resolved by replacing fuel pump. Never heard anything like that before from low coolant being that repeatable. One thing nobody has commented on is in my very first post.
It happens pretty much all the time: warm or cold ambient, etc. Inspected engine and discovered fluid leaking from passenger side motor mount. It's inexpensive and might do a lot of good if you haven't done any fuel system treatments in the 5 years mentioned above. Both engine mounts were bad. For help detecting a vacuum leak, I recommend the answers or.
How sensitive are these things to timing? I will have to investigate where I lost my coolant. How about the exhaust manifold? Up until today i've had no major problem. Timing tool in place at the end of both cams. I really don't know what to do and I don't want to prolong this and hurt my car further. Usually the check engine light comes on and the engine diag code reads mass airflow sensor, which is incorrect. I've been told by other swappers that the only difference exists in the size of the intake ports on the 2. The glowing also backs up the rich fuel trims.
And being a manifold cat, it's tough to eliminate it without disconnecting the manifold. Usually the check engine light comes on and the engine diag code reads mass airflow sensor, which is incorrect. This is how the Mazda service tech explained it to me. Even the slightest opening of the valve had an effect. I've swapped a 2011 Ford Fusion 2.
Would Paul be proud of me? I'm not sure what this means, however, the more I think about what this problem could be, the more I think that O2's could be a big part of it. Any input appreciated as I'm pretty handy with wrenches and voltmeters. Very, sorry for the confusion. The weird thing was that the cel immediately lit up when I started the car with the new sensor. If possible, compare this data to what you see on your Encore, see if there are any glaring differences. Code for large evap leak.