rich

Hey all, I’m trying to track down a rich-running issue on my 1995 Land Cruiser with the 1FZ-FE, around 248k miles. The original code I had was P0170. I replaced the upstream O2 sensor with a Bosch sensor, but after swapping the connector I ended up with a P0135 heater circuit code. I’ve got a...

85 4Runner, 1UZ/R150f swap. FINALLY got it running last summer, and it ran like a champ. Took a trip to Moab (...that's pretty much a side view, not a pic from above) in October. Ran fine, but my mocked up power steering pressure line blew up and soaked my wiring and alternator with ATF...

Hey all, long time lurker, first time poster. I have a 1985 4Runner and have been having issues with it running a bit rough off and on for a bit now. I’m down here in Baja and don’t have a mechanic I trust and also appreciate doing as much as I can myself and enjoy learning, so trying my best...

Hello all. Continuing in my 80 series resto- Have codes 25, 26, and 71. Running lean, running rich, and EGR System. It’s worth noting the vehicle is running fine over all- no noticeable issues. Any advice on where to start?