The check engine light came on and we connected it to the computer and it came back reading "the voltage signal from the exaust gas recirculation sensor "A" is to high for the current engine operating conditions. What does that mean. can we fix that or is it recomended we take it in to a dealership mechanic?
SOURCE: EGR Valve and Cyl. 5 misfire.....???
Hi
If this is an electronic EGR valve which is opened and closed by the PCM, then it may simply have to relearn the fully closed setting for idle, and it can sometimes be done by switching off the ignition, disconnecting the wiring plug from the EGR valve, and then resetting the fault codes with a scanner.
Now here's the important bit, the very second the scanner tells you the fault codes are cleared, quickly switch off the ignition. This will prevent the PCM from setting another code.
You can then reconnect the EGR valve and hopefully the lesson will be steadfast in the PCMs memory!
As for the cylinder 5 misfire, if it is still misfiring then you need to check for spark, fuel, and compression in that cylinder.
Run the engine for a minute and then whip out the no.5 spark plug. Is it dry or covered in fuel? If its covered in fuel then you have a spark problem, and if its dry then you have a fuel problem.
If its a spark problem and the plugs each have their own coilpack, then it is very highly likely the coilpack at fault, and in which case it is best to fit a new plug as well as a coilpack.
If its a fuel problem then it is very highly likely the injector at fault but you should check for a supply and earth pulse at the injector before condemning it, because sometimes the injector loom becomes crimped and damaged.
It could be a compression problem, but I doubt it, however, just to be safe you may want to carry out a compression test on that cylinder before throwing parts at it.
An easy way of determinig injector and coilpack faults is to move the suspect part onto another cylinder and see if the fault code follows it. If it does then you know that component is faulty.
Regards
Geordie
SOURCE: my 2000 rodeo check engine is on so i hade it
Check the vacuum lines going to egr. An intake cleaning may also help.
SOURCE: code p0403
The code is EGR cicuit open. I would believe that to mean that if the cicuit is open that the EGR needs to be replaced.
The worst thing, I think, a tech can do is to start throwing parts at a problem, but sometimes that is the only answer if you want to get something repaired without spending hours tracking things down.
Please let me know how it goes.
SOURCE: How do I clean the EGR sensors like the auto zone
The EGR valve is usually not servicable. Just replace it. it works in an ugly environment.
SOURCE: egr vacuum solenoid location
what type of toyota u have or if u can give me the engine code i might b able to help u
208 views
Usually answered in minutes!
×