Hello my name is Heath. I have a 1992 FJ80 that has a problem. The problem is it wont pass smog. The check engine light is on and I dont have the time right now to work on it. Does anyone know a good Toyota mechanic in the Dallas/Ft Worth area?
The co is high at idle. about 1.90 should be at 1.20. Two years ago I had the same problem and I did a complete tune up and replaced the cats and it passed.
I'm guessing there's a way to read the CEL code by jumping a couple of leads with a paper clip. You could on the early 1FZ, I would think you could on a 3FE too. Look around on MUD on how to do it.
Edit: OK I was bored and looked. It should be the same for all OBD-1 trucks.
1. With the key OFF, jump the E1 and TE1 terminals in the underhood diagnostics box with a paperclip.
2. Turn the key to the ON position, do NOT start the engine.
3. Count how many times the CEL blinks, I.E. code 25 would be two flashes, a pause, then five flashes, repeat. If there is more than one code, there will be a longer pause between codes.
4. To clear the codes, remove the EFI fuse, then replace it.
I have a 96 FZJ80 so it could be different with your rig but....
I have the CEL light on constantly in my rig. It is the EGT code that 80s are famous for.
I cheat the emissions every year.
I run a bottle of RXP thru one tank and then I run 1/2 a tank thru with a 2nd bottle of RXP prior to going to testing. Right before going to testing I unhook the battery for a couple of minutes; which resets the computer and turns out the CEL light. (after hooking the battery back up I have to lock and unlock the doors with the remote to keep the security system from going off. That could be a deal that only applys to my rig)
I drive to testing and pass. The CEL light will come back on about a day later.
I also run RXP thru my rig about once a month to keep things working good. If your system is really carboned up you may need to run a couple of bottle thru it first. I have also had good luck with BG44 cleaning up the emissions output in my truck.
Hope this helps,
CAS
