The TPS shouldn't cause a "dead" miss on just one single cylinder and cylinder 1 would also misfire if that coil was bad. Test for a good spark on both cylinders. Two other possibilities are: the injector, wiring or injector driver (inside ecu) to the misfiring cylinder failing or loss of compression in the cylinder. The wiring and ecu can easily be diagnosed using an ohmmeter and test lamp. The injector can be diagnosed by switching it with the injector next to it, if the misfire moves with the suspected injector, you have found a problem. Compression can easily be checked as well.
Sounds like it will be a fun car when it's healthy.
|