Hey guys, I've read this board for years, but haven't posted much in the past as I only recently (last month) became a proud FJ62 owner ('88 that I bought off MUD).
This past week, I've noticed some issues when starting the truck, having to crank it a few times before the idle will hold. Earlier today, I was driving at low speed on a neighborhood road and the truck stalled. I got it off the road, but then had to try numerous times over about 30 minutes to get the truck to hold idle and drive. I was able to get it home and read as many only threads as I could find to try to figure it out. Here's what I've done:
- Checked the Fuel Pulsation Damper -- I still have the screw intact and it seemed tight/in place
- Diagnostic Check -- I got the Error 51...which led me to the TPS
- Resistance Check on TPS -- I think I'm running pretty normal. I get a reading (around 12 ohms) when closed and it goes to OL when I open the throttle. I'm checking as per the FSM across IDL-E2
- Did a quick visual inspection of all hoses and connections under the hood -- I haven't done an exhaustive search, but everything seems intact.
After doing the above steps, I didn't clear the Error 51, but the truck does fire up and seems to idle ok. I drove around the block and again had a stall issue. I couldn't get it started (again), but was able to pop the clutch (H55 conversion) to limp home a few feet at a time. I did notice that when I attempted to hit the throttle to up my RPMs it would still stall...like pressing the gas pedal had no effect on preventing the stall.
Edit: I've also discovered that I can prevent the idle down / stall on starting the truck by keeping the starter engaged (turned). If I keep the ignition turned by holding the key it will idle and rev RPMs without issue. The minute I release the key it idles down and dies.
Any ideas? Thanks for any recommendations, this place is awesome!
This past week, I've noticed some issues when starting the truck, having to crank it a few times before the idle will hold. Earlier today, I was driving at low speed on a neighborhood road and the truck stalled. I got it off the road, but then had to try numerous times over about 30 minutes to get the truck to hold idle and drive. I was able to get it home and read as many only threads as I could find to try to figure it out. Here's what I've done:
- Checked the Fuel Pulsation Damper -- I still have the screw intact and it seemed tight/in place
- Diagnostic Check -- I got the Error 51...which led me to the TPS
- Resistance Check on TPS -- I think I'm running pretty normal. I get a reading (around 12 ohms) when closed and it goes to OL when I open the throttle. I'm checking as per the FSM across IDL-E2
- Did a quick visual inspection of all hoses and connections under the hood -- I haven't done an exhaustive search, but everything seems intact.
After doing the above steps, I didn't clear the Error 51, but the truck does fire up and seems to idle ok. I drove around the block and again had a stall issue. I couldn't get it started (again), but was able to pop the clutch (H55 conversion) to limp home a few feet at a time. I did notice that when I attempted to hit the throttle to up my RPMs it would still stall...like pressing the gas pedal had no effect on preventing the stall.
Edit: I've also discovered that I can prevent the idle down / stall on starting the truck by keeping the starter engaged (turned). If I keep the ignition turned by holding the key it will idle and rev RPMs without issue. The minute I release the key it idles down and dies.
Any ideas? Thanks for any recommendations, this place is awesome!
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