Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Hello my name is ***** ***** thank you for your question.
Do you happen to know if you have any codes?
If there is a fault in a circuit, it would produce a code quick. So if you can, have him double check. If he doesn't know how to manually check for codes let me know. I will supply the steps.
This sounds like a distributor issue.
Let me know..
not a problem. Let me know if he has codes. Also have him check for spark and injector pulse if he can.
Talk to you later.
Yes, these older vehicles with computers there were much more testing required to isolate issues.
92 may be the cut off year. Does this have the 2 injectors in the throttle chamber or does it have 4 injectors 1 per cylinder?
The throttle chamber on some of the old trucks had 2 injectors that mount in the top of the throttle chamber. Later they took the two injectors out, and put 1 per cylinder. I don't have to much data on these older trucks. I have from 94 and up. So I am working off memory of these trucks.
If this truck has the 2 injectors in the throttle chamber, I have seen them dump to much fuel which drowns out the truck.
Other wise, it could be a MAF sensor issue.
I have seen ports in the intake get all carboned up which can keep the truck from running when it warms up.
Either that or a fuel pump maybe. It has fuel pressure as the pump warms it looses pressure.
It could be a number of things. The first thing we need to check is to see if it can produce a code.
MAF sensor has a heated element. When cold it could run but as it warms it dies.
He is giving it gas to run at 1800 rpms? it will only start and idle on it's own for around 5 mins?
It has the 4 injectors?
Waiting on codes...
Any idea when he will check?
The 02 sensor is used in all situations. It has a heater to help it warm up faster to get to operating temp. The readings it produces from the exhaust tell the computer if it's running to rich or to lean so it can try to make adjustments to balance the fuel trim if it can.
I would rather not throw any parts at the truck till we can read the codes.
I would agree. It seems since you are the man in the middle of this and since we can not read the codes yet. It is making this more difficult for both of us.
That is the operation of the 02 sensor. So you know what it does for this vehicle.