EngineBuild journalCommunity Starter

1988 Toyota Land Cruiser FJ62 — question: Random misfire code but engine feels fine

TrailHunter77Community StarterApr 23, 20261988 Toyota Land Cruiser FJ62Chicago
Scanner showed a cylinder-specific misfire code after one rough start, but the car feels completely normal now. Plugs aren't that old. Would you swap coils to see if the code follows, or just monitor until it happens again?
permalink

18 replies

TrailHunter77Community StarterCommunity StarterApr 23, 2026permalink
OP update: scanned the 1988 Toyota Land Cruiser again and still only have the one pending code, no new lights. I'll update if anything new shows up.
TrailHunter77Community StarterCommunity StarterApr 23, 2026permalink
Tried a second charger / second scan and the story on the 1988 Toyota Land Cruiser didn't change. Video is ugly but it shows the hesitation.
TowCommuter12Community StarterCommunity StarterApr 23, 2026permalink
I wouldn't throw parts yet. Swap the cheap/easy piece first on the 1988 Toyota Land Cruiser and see if the fault moves. That's the branch I'd chase this week. Parts cannon is a personality type I try to avoid. Your commute and mine probably aren't the same, but the test still applies. Might be overthinking it, but I'd rather overthink than overspend.
FlatSixWeekend31Community StarterCommunity StarterApr 23, 2026permalink
I'd want a measurement, not a hunch. Get a real battery/charging test on the 1988 Toyota Land Cruiser, not just resting voltage, before blaming a module. Don't erase codes until someone who can help has seen them. Verbal 'we'll take care of it' is not a plan. I'd rather be boring and correct. I refuse to clear codes until someone else sees them.
TowCommuter12Community StarterCommunity StarterApr 23, 2026permalink
This is usually cheaper to test than to guess. Two 1988 Toyota Land Cruisers can feel identical and have different causes, so measure before you copy someone else's repair. You'll know quickly if you're on the wrong tree. Parts cannon is a personality type I try to avoid. I already checked the easy fluid levels.
RustMomCommunity StarterCommunity StarterApr 23, 2026permalink
This is usually cheaper to test than to guess. Write temp, speed, and in-gear vs coast when the 1988 Toyota Land Cruiser does it — then decide on parts. Save the big job until that test fails. When does it actually happen? I refuse to clear codes until someone else sees them.
TrailHunter77Community StarterCommunity StarterApr 23, 2026permalink
Checked the easy stuff on the 1988 Toyota Land Cruiser and found one clue worth chasing before I book a shop. This is the version I'd tell a friend.
TrailHunter77Community StarterCommunity StarterApr 23, 2026permalink
Checked the easy stuff on the 1988 Toyota Land Cruiser and found one clue worth chasing before I book a shop. Video is ugly but it shows the hesitation.
CanyonPilot84Community StarterCommunity StarterApr 24, 2026permalink
Yes, with one caveat: Two 1988 Toyota Land Cruisers can feel identical and have different causes, so measure before you copy someone else's repair. Don't erase codes until someone who can help has seen them. Monthly payment math is how wallets disappear. I'd rather be boring and correct. If it repeats twice more I'll book time.
TrailHunter77Community StarterCommunity StarterApr 24, 2026permalink
OP update: scanned the 1988 Toyota Land Cruiser again and still only have the one pending code, no new lights. This is me being the wet blanket on purpose.
PistonTech5Community StarterCommunity StarterApr 24, 2026permalink
Log the conditions before you spend. A pressure test beats staring at a dry driveway if the 1988 Toyota Land Cruiser is losing coolant with no puddle. That's the branch I'd chase this week. On “question: random misfire code but engine feels,” that was the fork that mattered for me. I'd want that in writing, not as a promise. Checking again after work.
PixelDetailer78Community StarterCommunity StarterApr 24, 2026permalink
Start with the test that can prove you wrong. Write temp, speed, and in-gear vs coast when the 1988 Toyota Land Cruiser does it — then decide on parts. Don't erase codes until someone who can help has seen them. When does it actually happen? Not interested in a five-hour wait for a shrug.
JDMCamperCommunity StarterCommunity StarterApr 24, 2026permalink
Start with the test that can prove you wrong. If a shop can't duplicate it on the 1988 Toyota Land Cruiser, bring a video plus freeze-frame data, not just a story. Don't erase codes until someone who can help has seen them. Post the numbers (or the code) and people can get more specific. Wrote this up on my lunch break.
CanyonPilot84Community StarterCommunity StarterApr 24, 2026permalink
Start with the test that can prove you wrong. Swap the cheap/easy piece first on the 1988 Toyota Land Cruiser and see if the fault moves. That's the branch I'd chase this week. The universe charges extra for guessing. Worth doing even if the car feels fine right now. I already checked the easy fluid levels.
FlatSixWeekend31Community StarterCommunity StarterApr 24, 2026permalink
If it were in my driveway, swap the cheap/easy piece first on the 1988 Toyota Land Cruiser and see if the fault moves. That's the branch I'd chase this week. Verbal 'we'll take care of it' is not a plan. If that fails I'll eat the diagnostic fee.
CanyonPilot84Community StarterCommunity StarterApr 24, 2026permalink
If it were in my driveway, a pressure test beats staring at a dry driveway if the 1988 Toyota Land Cruiser is losing coolant with no puddle. That's the branch I'd chase this week. This is from a 1988 Toyota Land Cruiser in Chicago. Monthly payment math is how wallets disappear. That's my plan before I call anyone.
PixelDetailer78Community StarterCommunity StarterApr 24, 2026permalink
Ask what changed right before it started. Move a coil or plug on the 1988 Toyota Land Cruiser if it's cylinder-specific and see whether the code follows. Save the big job until that test fails. This is from a 1988 Toyota Land Cruiser in Chicago. Any freeze-frame data saved? A day of patience here is cheaper than a wrong part. Video is ugly but it shows the hesitation.
OldSchoolPilot66Community StarterCommunity StarterApr 24, 2026permalink
Ask what changed right before it started. Move a coil or plug on the 1988 Toyota Land Cruiser if it's cylinder-specific and see whether the code follows. If the cheap test changes it, stop and reassess. Had a similar mess a couple years ago and that's what finally sorted it. Might be overthinking it, but I'd rather overthink than overspend.
Sign in to reply

Similar discussions