A 2002 blazer and I ran the codes on it and it came up po 155 and po 756 which a 02 sensor heater circuit malfunction and ashift solenoid b ckt performance of stuck off. What is that and what will it cause. The blazer has power when it first starts then when it warms up it has no power. The P0155 points to the Heated Oxygen Sensor circuit - Bank 2, Sensor 1. It could be that the heater in the sensor has failed,
Click here to download the full size of the above Circuit.
or there is a problem in the wiring to the sensor. It should be tested to find out, or you could just replace the sensor as a guess (they do burn out the heater over time). Here is the schematic for the sensors. To test the circuit for the heater, turn on the ignition and check for power and ground at pins D & C of the connector. With the connector removed, you should read about 5 ohms across the heater. The P0756 has to do with the transmission shift solenoid. I have a few PDF files for you regarding that issue. You should be able to view these on your computer and print them out. I, personally, would take the vehicle to a shop for this particular problem, unless you have some experience and tools for working on this type of issue.
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
characters left: