Less then a year later I'm having the same issue. I assume you have alldata or something of the like. Maybe they will help you out. I ran into a similiar problem, but on my 06 1500hd. It rattles back in contact and then back out.
Still need to find where the ground is. Even though it would start fine and register the correct voltage on the gauges. Sounds as if your coil packs were using some of whatever voltage is bleeding thru to that circuit. So you should chech it on our car models. You have codes for the two cylinders on the same coil,so this is most likely it. Check out my oil pressure in the log file attached along with other readings. Truck is repaired and ready to go.
Thanks in advance for any help. I did a write entire for kicks and suddenly the oil pressure read correctly but I blew the fuse for the driver side coil packs. Each reference bus provided 5-volt reference circuit for more than one sensor. I am leaning towards a bad ecm but want to make sure before I buy an expensive part. Couple days ago it showed up, I reset the code and it came back almost immediately. If the codes change after moving the coils, replace the coils. Yesterday it did it again and I got P0107, P0106, P0452, P0522, and P0641.
I am going to try the battery just to see if that fixes the issue. As I begin to replace them one by one, what order do you guys recommend? What if it is just a sensor? He is not happy with the suggestion either, but that is what his bulletin says. When was your last tune up? Most applications use two separate reference voltage circuits to supply a 5V current to engine and other sensors. I began tracing the engine wiring harness and I found a chaffed wire near the oil filter housing. He also showed me thay all of the sensors on the circuit were only running on 2 volts. There were a lot of codes stored but the only one of real relevance was Code P0641 Symptom 00, 5 volt reference circuit 1.
Compare all obtained readings with the values stated in the manual, and make repairs or replace wiring as required to ensure that all electrical values fall within the ranges specified by the manufacturer. Each reference bus provided 5-volt reference circuit for more than one sensor. I have read and read and understand it can be several sensors. Any help is greatly appreciated. Step 5 If the reference voltage circuit checks out, continue by performing resistance, ground integrity, and continuity tests on the other circuits in the system. What you need is a schematic of the engine wiring harness. Reasonably cheap fix that is a prevenitive maintenace item anyways.
Of course when it didn't fully reset the first time I reset it several times all going to only 82%. One at a time and rechecking voltage along the way. The P0301 code means that the cylinder 1 is misfiring or is randomly misfiring. Dec 17, 2012 These codes are making me lean towards the ignition coil pack. Do you have alldata or anything? The lights blink, and even the alarm sounds if a door is opened but they do not lock or unlock. He said he was able to verify that allof the sensors on this circuit are functioning well.
Im hesitant to buy an ecm however can you always see that sensors are working through a scanner. Lemme know if you need any other diags if you dont already have them. If your are for a different car, select that vehicle series before searching for the diagnostic codes because not all used by one manufacture are used by the other makes. How serious is the P0191 code? So far the ultimate headache ache. Take your time and consider all of the possibilities before concluding that the fuel rail pressure sensor is faulty.
I went to fire the car up and it went into safety mode. OlliePop2500 looks like you were right on time. The P0191 trouble code is considered serious as it is known to cause drivability issues. If this code is stored, and a service engine soon lamp has not yet been illuminated, the code may be shown as pending. My stepson's 2001 Sable 3. Unfortunately he wants to throw parts at it too. Step 4 If no visible damage to wiring is found, prepare to perform resistance, reference voltage, continuity, and ground integrity checks on all relevant wiring and sensors.
On the previous reset attempt it would only reset to 82%. I didn't even get to make a pass. If you don't have one you can buy a cheap one like this: Key on, engine off. The one that's in there now is only a month old. It was like a car with a massive vacuum leak.