Where will it all stop? Perform an engine vacuum test to ensure that the engine is making sufficient vacuum. I use brake cleaner to clean mine. P0069 is 99% of the time caused by the intake air pressure sensor located on the side of the airbox. Is it poss that the main filter is partly plugged or should go for a while then it will die again. When this occurs, there is usually a short to ground or a short to power. Consult the service manual for exact specifications pertaining to your vehicle. So I knew this problem was from something else.
When mine got plugged up when still under warranty the dealer replaced it. I'm unable to take it out of town to the nearest mechanic and need to use the vehicle to get to and from work. Checkedit 10K miles later and it was fine. It's usually attributed to either the connector being unplugged it's not a robust latching mechanism or the sensor being bad. In the V-engine design, Ford follows a similar design with the number one cylinder at the front left of the engine.
It is in the lid of the airbox, right next to the boost hose. If it were an issue of the boost pressure sensor having drifted you'd have other issues as well. Just for those interested in the performance gains of a supercharger on a Jeep Wrangler, this is my in Staten Island. My car has 107000 miles. I am hoping its not the fuel pump itself. Thank you for writing in.
My wifes 04 liberty died on her the other day and those are the codes she says she read. It is in the lid of the airbox, right next to the boost hose. When these readings reach below a certain level, the code P0129 is set. Checkedit 10K miles later and it was fine. Vehicles with this type of system usually substitute manifold air pressure for barometric pressure and the scanner data stream may reflect this terminology. Two days ago I was driving it home from work and the engine stalled twice.
If it were an issue of the boost pressure sensor having drifted you'd have other issues as well. All of the devices were connected to a switched 12V power supply which would serve as an activation trigger equivalent to turning the Jeep's key. Here is a brief explanation of some of the most common designs. Make a note of all codes and freeze frame data as this information may prove useful in the event that you are dealing with an intermittent code. Automotive barometric pressure sensors are very accurate with a tolerance of approximately one-meter.
Not Cheap Also as I am a new member here I was wondering if I can also add my Grand Cherokee to my profile. Conditions such as clogged catalytic converters, restricted mufflers, and low fuel pressure may also contribute to a loss of engine vacuum. But turn the Jeep off and start her again and it was like rolling dice as to whether the light would come on. The orange wire should have 5V. I checked the codes and it was showing a bad cam shaft sensor and a faulty barometric sensor. Consult the service manual for exact specifications pertaining to your vehicle. I continued to mess around with the square wave generator at this point.
First cleaning was all gunked up. It is usually mounted on the firewall or inner fender and has a vacuum hose connected to it. Clean and tighten terminal ends as required. Repair or replace open or shorted circuits as necessary. To do that, I figured an oscilloscope would be the best tool. Make sure that system reference voltage and ground signals are present.
In the V-6 configuration, cylinder 4 is at the front right of the engine and in a V-8, cylinder number 5 is in that location. I replaced both sensors and cleared both codes. Perform an engine vacuum test to ensure that the engine is making sufficient vacuum. Damaged wiring or corroded connector faces must be repaired before continuing the diagnostic process. Plus, they've added a water intercooler in place of the prototype's methanol injection method of intercooling.
What bothered me was that the Jeep was running fine and I'd already inspected all the sensors with a multimeter and the interface software into the supercharger's fuel management piggyback computer confirmed it was working correctly. If you find the 5V reference is high or low, it is often necessary to disconnect each sensor that uses the 5V reference while monitoring the reference signal. Since most vehicles aren't designed for forced induction, they only have sensors that detect up to 1 bar of pressure. At wide open throttle, the most air a non-forced induction engine can ingest into its cylinders is equal to the. Other manufacturers sometimes use an alternating pattern in the V-engines.
After that, the other codes should clear. When the signal changes back to 5v and not above 4. Make a note of all codes and freeze frame data as this information may prove useful in the event that you are dealing with an intermittent code. This is done most easily from below the car in the area near the oil filter. At this time, I bumped up the frequency to 100Hz and noticed the 13ms lag was too slow to accurately follow the 5V swing.