Recent content by MustangOwl

Popped it with a rubber mallet twice and knocked it loose (all hoses and connectors were off). Then proceeded w the chisel. Thank you!

Attempting to check my water temp sensor led me to do a check of my thermostat. HOWEVER Some previous owner must have opened the thermostat casing before and then used a sticky silicone (loctite?) to form a gasket sealing it together with the water pump. The sucker won’t budge. Any tips...

Yup. Sorry. 1990 FJ62 (11/89 build)

I’ve done some digging but haven’t quite found an answer yet. Does anyone know how to test or to remove the water temp sensor without having to take the entire pump or thermostat or whatever that thing is off? :) I sure was hoping this would be a simple test and replace, but it’s looking a...

Btw, @MrMacdugal posted a link to @jonheld ’s 3FE EFI diagnostics above. While I believe it references a 1991 FJ80’s version of the engine, the simple diagnostic information and suggestions helped me to understand the system better and helped me to very simply and quickly identify the problem...

SOLVED!! Alrighty folks, just to tie up any loose ends in case another unlucky soul needs help with electrical gremlins tied to an AFM issue. RECAP: CRANK / NO START / NO CEL issue. As I was beginning to run-down all the electrical gremlins, someone somewhere mentioned a quick unplug of...

Any updates on the above AFM fun? I may be heading down the road of repair or replacing… just seeing if there was an update. Thank you!

Busy month, back to the garage today. I read through all the helpful comments provided (y’all ROCK!) and dove into a few rabbit trails. Somewhere, someone posted a 3FE diagnostic thread that had a PDF with a 1991-92 3FE EFI diagnostic. While not an exact match to my vehicle (FJ80 vs my FJ62)...

UPDATE: Ok. I checked the CEL bulb, it still works (grounded W on the ECU). I get no codes when in diagnostic mode. The CEL DOES NOT FLASH in diagnostic mode. The ECU IS getting power (11V and change; very close to battery reading). I tried the above with TWO ECU’s (one a new, used one...

I checked the CEL bulb (I think the FSM had a procedure to check…?), and it WORKS. Battery is a new Red Top, so it’s terminals are awesome. The last time I checked for codes, it was clear (blinked continuously). I’ve replaced the sparks. By the way, the FSM has a TWO measurements for...

To answer some questions (sorry, work has been CRAZY!): We’ve got an 89 FSM to go along with my 1990 FJ62. When I bought it, she ran and got about 5 mpg’s, so we knew there was something amiss. Shortly after, my wife was driving it, she died, and threw a CEL code for the TPS sensor. We...

Awesome insight. I’ve got a great DMM. I’ll run through these checks this week. Thank you!

Oh wow! Any idea what kind of foam / filter to use to replace it? THANK YOU!

Still navigating a cranks, no starts, CEL does not light up on ignition issue… but as I tried a new ECU (didn’t work), I saw the below in the pic. Can anyone identify what this filter looking thing is? I was under the impression the 62 didn’t have a cabin air filter. If anyone has any...

I’m trying to track down what may be a grounding issue for my ECU (or my ECU is faulty… joy). The brown-with-black wire running out of E1 on my ECU looks like it snakes through the bigger harness into the engine bay, then down towards the starter (where i can see it / it’s out of the insulation...