Run the heater on HIGH inside and see what kind of output you are getting. Also, this is a great way of keeping the engine from overheating if the water pump is still functioning properly as the heater core is not t-stat controlled.
Yes, first thing to do is check codes to start diagnosis.
Check your throttle body, clean it if necessary, press on it to see how freely it opens, release it to see if it returns back to almost closed position.
The pressure switch does not have a reference voltage, it is switched ground only.
Place 1 probe on metal grounded surface and other on part being tested. Set meter to Ω (ohm):
When testing the switch, you should have infinite resistance (no continuity) in Park, and 0 (no resistance) in Drive...
The workshop manual lists only the oil pressure switch circuit being the cause of P0841, either the switch, the harness, the wiring to the TCM, or the TCM itself. If you have instructions that list otherwise, I'm sorry I can't help with that.
Did you perform the harness inspection?
On-vehicle Inspection (harness inspection)
1. Remove the battery duct and battery cover.
2. Disconnect the negative battery cable.
3. Remove the under cover.
4. Disconnect the cord assembly connector.
5. Verify that there is no continuity between the cord assembly terminal and ground.
Upon further reading, the workshop manual has conflicting data regarding the MIL/AT lights.
I don't have personal experience with P0841, so I can't speak to the causality except what the workshop manual states. It is a NO switch that provides ground to TCM when pressure is applied and can...
I'm glad you got it repaired for a reasonable cost. What you are referring to is the EPC, pressure control solenoid.
I just did this repair yesterday, but instead of replacing the lock unit, I disassembled and cleaned the motor. It is a cheap 12V low amp motor like you would find in a toy. It would probably be difficult to source a replacement though because the shaft is about 1-1/2" long, and instead of ears...
There shouldn't be much that you have to say besides telling them your symptoms - stuck in 3rd, hard shifts, etc. This type of repair does not require a dealer, just your local reputable mechanic. In one of my previous posts, I had mentioned the need for programming, but if your '08 Mazda3 is...
I was going to tow a small popup with our 5 before we found a nice toy hauler that the Odyssey can handle.
Put the biggest ATF cooler on it that you can, keep your speeds below the speed limits and you'll be fine.
The first thing you need to do is determine if the same trouble code is being triggered (P0758). Drive to your local auto parts store (AutoZone, Advance Auto Parts, O'Reilly Auto, etc.) for a free code check.
Then is can determined if this is an electrical issue and hopefully not necessitate...