1998

iPhone requires Wifi not Bluetooth for the ELM327.

I tried OBD Car Doctor: Would not connect, ever

I tried DashCommand: It connects but will not read any gauges or sensors

I tried OBD Auto Doctor Pro: Connects fast. Reads most sensors. Would read fuel trims in my Mercedes, but would only read short term fuel trims in the BMW I was working on. Would not read long term. Also it could not reset the CEL.

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra