misfire

Hey all, hoping I could get some advice here on a chronic issue I have had on my 99 UZJ100. Vehicle Stats: Purchased: April 2014 - ih8mud listing Current Mileage: 266,682 I have meticulously kept up maintenance on the vehicle and only now am I having trouble with diagnosis and solving the...

On a 1998 LX470, are there 2 throttle position sensors? When I search for the TPS parts, I get results for both of these images. I can locate on the truck the one that the throttle cable goes through but haven't found the other sensor. Where is the other sensor located? And, if I am getting...

Hello again everyone! I finally bolted on the Aisan carb that I got rebuilt and after a lot of tinkering with it trying to get it to run right, I am not sure what I am missing. I can't get it to idle without misfiring pretty regularly and it has some issues starting sometimes. I have tried...

Howdy guys, Bought an 87 FJ 60 and inherited some problems. When we got it running it wasn't firing on 1 and 2 and had a rough idle (but it could get low, around 700 rpm). It would fire on 1 and 2 if the rpms went higher, but not at idle. Tested the intake manifold with starter fluid and it...

Yesterday my 100lc was running very rough and I got a cel for a cylinder 8 misfire. I thought I would just go change the coil but when I went to change it I found the cable that connects to the coil was very loose above it where it connects into the wire harness. I pushed it black in and the...

Hey guys I’ve got a 1997 1fz-fe (Australia) and I have a bad misfire on idle, once the car warms up from a cold start it will begin to happen and will drop low enough that it stalls, taking off from the lights, it feels like it has no power until around the 2500rpm mark and then just takes off...

Hi Everyone, I recently installed (3-months ago) all new ignition coils on my GX470. In the past 3 months, however, I’ve had 4 of the inviting coils go bad. Cylinder 2 then 7 then 6 then 3. I’m wondering what the heck could be going on here. I replaced the spark plugs at the same time also. No...

This pass weekend, I was doing some compression tests trying to diagnose a possible head gasket leak and did a double-take on the state of my relatively new spark plugs. FJ62 is pretty rough from a cold start, especially under 1500 RPM. There's an occasional popping sound but disappears as it...

When take off from being at a complete stop and theres a subtle hill to drive up, i experience some shaking as if its misfiring. So far Ive changed the spark plugs, and change out the differential and transmission fluid. The tough part is it doesn’t always happen so it’s hard to show the...

Hey all, been trying to track down an issue on my 1993 Land Cruiser with the 1FZFE. It has no power and is stumbling, sometimes will die if I lightly bumo the throttle at idle. Sounds like a diesel. I've been through the forums to no avail, so here's what I've done to it and what I've checked so...

I have a '99 2UZ-FE with 170k miles. Driver's side ignition coils (1,3,5,7) and plugs were replaced OEM (Denso) about a year ago by the PO. The passenger's side cylinders (2,4,6,8) were replaced 6 months ago with non-OEM aftermarkets. Today I just had the 3rd of 4 non-OEM coils fail. I clearly...

Hey all, new to the forum here! 3rd Gen 1998 4runner w/ ~190,000mi on it, 3.4L v6 automatic. As I arrived home the other day my engine started running very rough and the engine/cab had a pretty hefty shake to it. It also started throwing a code. For the last two years I've gotten the P0130...

Engine is running rough. Check Engine light is lit and flashing. Code reader gives three codes: P0300, P0303 and P0306. Codes are "misfire," "misfire cylinder 3" and "misfire cylinder 6." I replaced spark plugs and wires for cylinder 3 and 6 with no improvement. I removed distributor cap...

Hey all, Had been having voltage issues for awhile now, battery wasn't charging, misfiring, plugs fowled etc etc. Anyway, I have replaced the alternator and voltage regulator (which I discovered melted down). Can anyone tell me what type of voltage numbers should I be seeing coming off of the...

Yesterday, one of our 100s suffered a misfire at 3000, wouldn't pull above that and ran slightly rough once falling back to idle. Did air/fuel filters, throttle body, air flow sensor etc. No joy. Seems an impact dislodged the LH O2 Sensor lume and it suffered heat damage on the Cat pipe. As a...

Hey guys, So after pouring over dozens of threads on here and conducting hours of Google research, I have yet to find anyone with the same issue. So I thought I'd put it out there and see if anyone has experienced something similar and was able to fix it. So I have a 1999 Land Cruiser and I've...

I pulled my fuel injectors in my '97 LX with 253k miles and brought them to a local injector shop for cleaning/servicing. I've used them many times before for diesel injector cleaning/servicing. While the upper plenum was off I decide to clean the oily crap out of it, and wiped out the lower...

I've got an issue where once the truck is first started in the morning or becomes cool, it will "pop" once as a misfire on the first real tip in of the throttle. -It wont do it more than once as long as I'm driving in that session. It the engine undergoes a hot restart, it will not pop. It...

Hey Folks, I'm at a bit of a loss trying to diagnose my cruiser right now. Cruiser Specs: 1997 LX450 150k miles Recent Maintenance: Valve cover gasket replaced Coolant flushed with toyota red PHH replaced Background: I've owned the vehicle for 4 years, have done regular oil changes, and...

So finally saved up enough to buy a 2000 land cruiser with 220k.. the previous owner (1 owner) had a huge stack of all the records (timing belt/water pump done 20k ago) so I was thinking good to go decent one owner well maintained rig... not so far.. I had the local shop in town go over it after...