More About Points »
Automotive Software updates require an OEM Scan Tool or a J-2534 Pass-Thru Device, and a subscription to an OEM Download Location, your symptoms describe a default to Limp-In, which is a built-in strategy to protect the transmission hardware. This can be caused by: an intermittent connection, faulty ground, faulty relay, faulty transmission control module, network issue, failing speed or pressure sensor, overheating transaxle, etc.
We agree with pushrod !
Vehicle Owner/Engineer; 1 > A GOOD BATTERY in a state of discharge should not measure less than 9.6 volts, from what you have posted I suspect that you do not have a viable battery. 2 > I therefore suspect that there is no other issue with this vehicle, which, when running with a good battery should have 13.7 to 14.9 DC volts indicated across the battery terminals, indicating a good DC charging system voltage. 3 > To test for a parasitic draw, an inductive ammeter should be used, and individual circuits can be checked by removing fuses to isolate them, 4 > I do not know of any published specification for a resistance test across the ( disconnected ) battery terminals, but with all of the circuits involved, I would not consider that reading a problem. 5 > That is a somewhat simplified explanation, there may be other issues , such as a failed rectifier internal to the alternator, which in some cases may indicate a suitable charging voltage, but can cause other problems, such as a discharged battery, or even engine performance problems, this can be diagnosed by checking for AC ripple across the battery with the engine running, or with a lab scope.
Owner, It sounds like the engine is trying to operate with too much fuel, this could be caused by a host of possible faults, including faulty fuel injector, faulty oxygen sensor, coolant sensor circuit open, possible evap system fault, Hint: never add more fuel after nozzle shuts off when filling tank.
There are some really good technicians in this business, but I don't know of any who are able to diagnose a vehicle effectively without test information, that being said, check for a vacuum leak, mis-routed spark plug wires, missing or incorrectly placed grounds, mis-routed vacuum hoses, loose or cracked intake duct, ignition system issues, or fuel injector connections & harness routing. Good Luck !
Lab Scope ignition & fuel pump relay control circuits, to determine which goes away first. does it have an aftermarket security system ?
Vehicle Owner: Sorry, we need more information to offer a possible solution ! any good Auto Technician would start with an interview of the customer, getting all the information about the failure, repair history, maintenance schedules,scan tool, check for communication & diagnostic trouble codes, test the battery voltage, check fluid levels and condition, check fuel pressure, & check the ignition systems operation, We make our diagnoses based on test results, not a guess.
Please describe the alarm sound, beeping horn ? steady horn ? Security light flashing ? siren ? More information - for me will help me - help you.
I you could provide me with the VIN #, I can give you an accurate Estimate, Thank You.
Yes, That is good advice.