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In the end it's probably money well spent, as it avoids replacing some expensive parts that are not at fault at all.Īs this seems to be a fuel injection problem, with the above mentioned proper testing device, you can see the internals of the engine at work. If you know what causes the problem, you can still decide to do the repair yourself. I recommend consulting a good auto electrician, or a Toyota dealer.
#Toyota diagnostic trouble codes 730 code#
Many times this code indicates that the transmission may need to be replaced. Fortunately this is a code that the retail auto parts stores don’t immediately try selling parts to the potential customer. The Freeze-Frame-Data is a valuable record of many engine parameter values from the time an error occurred and the error codes were stored.Īnd if the diagnostic process leads to question the injectors or a failing ECM, you need a oscilloscope to find out. This Diagnostic Trouble Code (DTC P0730) is relevant to the automatic transmission in the vehicle. What is needed here is a proper testing device, to read all the relevant DTCs plus the co-called Freeze-Frame-Data. For a comprehensive list of trouble codes, check out this article on the Toyota Parts Center Blog. The P0200 error can point to a variety of things, including the wiring/connectors, the EDU, the ECM, one or more injectors, or a combination of these. If other codes are also triggering, before replacing the vent valve, check those to see that the problem isnt further up the line and causing the P0441 as a periphery trigger than than the primary problem. This may not be of much help to you, but this is typically the kind of problem that goes beyond random guesswork and likely beyond the skills of a DIY-er.