For the past several months I have been dealing with a legitimate loss of power. 1991 FJ80 207K. I have performed all of the regular maintenance items on Jon Held's list and finally caved and brought it to an independent mechanic.
25 year Lexus/Toyota master tech (shop owner) and his head Toyota mechanic can not figure why the truck is retarding the timing and why the exhaust is extremely hot!
He suggested an ECU but didnt want to throw parts at it until he knew why. I decided to source a used one nonetheless but am awaiting delivery.
Here is what I know so far: The injectors are good, the valves are good, the distributor tested good. The exhaust has been removed to see if there was a clog, but no improvement. Compression is good 155-160 range. Fuel flow is impeccable. Fuel filters have all been replaced.
Does anyone have any ideas I can help throw his way?
25 year Lexus/Toyota master tech (shop owner) and his head Toyota mechanic can not figure why the truck is retarding the timing and why the exhaust is extremely hot!
He suggested an ECU but didnt want to throw parts at it until he knew why. I decided to source a used one nonetheless but am awaiting delivery.
Here is what I know so far: The injectors are good, the valves are good, the distributor tested good. The exhaust has been removed to see if there was a clog, but no improvement. Compression is good 155-160 range. Fuel flow is impeccable. Fuel filters have all been replaced.
Does anyone have any ideas I can help throw his way?