Recent content by 88TXCruiser

  1. 88TXCruiser

    Fuel pressure regulator bad? '88 FJ62

    Ok. I tried this and the pressure did not increase. I was really hoping this would be the pressure regulator, but it seems like the fuel pump. Guess I'll be dropping the tank. I'm frustrated since I had this done by a shop a few years ago and it hasn't been driven much since. When it was first...
  2. 88TXCruiser

    Fuel pressure regulator bad? '88 FJ62

    Yes that line goes directly to the regulator, it's just easier to disconnect at the other end. The flexible line is about 3-4 inches long. I've changed the fuel filter now, and the readings from the diagnostic tests from the FSM haven't changed. Is the return line the one running on the...
  3. 88TXCruiser

    Fuel pressure regulator bad? '88 FJ62

    I disconnected exactly where is shows in the FSM diagram. I didn't try to feel for vacuum on that hard line. I can try, but not sure my fingers are sensitive enough to feel it. Since the vacuum to the FPR is controlled by the VSV, how do I know when it should be seeing the vacuum in that hose...
  4. 88TXCruiser

    Fuel pressure regulator bad? '88 FJ62

    Ok, thanks for the replies. I changed the fuel filter and there isn't any change to the diagnostics. In fiddling with things the vacuum hose has gotten pretty loose, so I am ordering some replacement hose and might go down the rabbit hole of replacing the vacuum hoses. The fuel pump was replaced...
  5. 88TXCruiser

    Fuel pressure regulator bad? '88 FJ62

    Ok, thanks for that. I did locate the VSV, and checked it by applying voltage and the airflow behaves as per the FSM (FI-78) So seems to be working. But I don’t know if it is getting a voltage signal.
  6. 88TXCruiser

    Fuel pressure regulator bad? '88 FJ62

    Ok, I tried that and it dropped a bit and quickly recovered. Hanging in the 40 psi range. The two things that behave out of spec are: The initial pressure with the key in the "on" position and the service wire shorting FP and +B - should be 37-46psi, actual ~32psi ❌ Idling, disconnected vacuum...
  7. 88TXCruiser

    Fuel pressure regulator bad? '88 FJ62

    I have had some issues recently with my FJ62 losing power/stuttering recently. Starts and idles fine, but occasionally when running it seems to bog down or lose power randomly. I am diagnosing via the FSM, measuring pressure with a gauge attached to the cold start injector with the "modified...
  8. 88TXCruiser

    88 FJ62 3FE "stutter"? random quick loss of power

    That's a fair point, it has been a while on most of those. Is there a good video on setting timing? I have the FSM, and I think I understand how to adjust the valves, but setting the timing is not something that I have done. When we got this wagon I had the valve adjustment set at a shop, but...
  9. 88TXCruiser

    88 FJ62 3FE "stutter"? random quick loss of power

    I'm chasing an intermittent seemingly random drop in power in my FJ62. It will happen a couple of times in a trip. It's like it loses power or stutters or something for just enough time to make me think it's going to die, then it comes back to life and is fine again - all told it's 1-2 seconds...
  10. 88TXCruiser

    88 FJ62 (3FE) AFM question

    Recently chasing some other issues, I noticed that the AFM resistance isn't checking right. checking infinity from e2-tha. The other resistances are in spec. So I went over to a friend's who has the same vehicle, and his also checking infinity from E2-tha. His is running fine. How significant is...
  11. 88TXCruiser

    FJ62 3FE no start, no spark

    I agree with that. I'll either refresh it myself or get a replacement. Another confusing wrinkle - I tested the resistance on the AFM from "E2-THA" per the FSM on my friend's 1990 FJ62, and his also indicated infinite resistance (his runs fine). <confused>
  12. 88TXCruiser

    FJ62 3FE no start, no spark

    ok. following up as I unravel this. today I inspected the fusible links because that seems to be a typical suggestion when the CEL is not on when the ignition is in the on position. suddenly CEL light is on. plugged the coil "high tension" wire back in and the plug at the coil/igniter, and it...
  13. 88TXCruiser

    FJ62 3FE no start, no spark

    OK, I've been through a lot of threads and now they are just jumbles together in my head. My 88 was running fine, with the occasional mysterious momentary loss of power but it would always come right back. Saturday I was driving on side streets, coasting up to a stoplight and it just died. Will...
  14. 88TXCruiser

    Pinion seal replacement question

    Thanks. I made things back up to the place it was previously staked plus a few degrees of rotation, and staked the nut. I also made sure that the vent was clear by putting some compressed air through the hose. Now to move on to the other leaks....
Back
Top Bottom