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1-16 of 16 Results
  1. Basic Help & Repair
    Long story short car overheated and blew the head gasket warped the cylinder head rebuilt the entire engine bearings piston rings everything. The car ran well for a while but decided to remove the MLS-style head gasket and went to a single-layer OEM head gasket to increase compression since we...
  2. Basic Help & Repair
    Recently installed some random marketplace headers on my 02 IS300 (Megan I think?) and it ran fine for about a minute, then started missing like crazy. Got it to a shop and they replaced the B2S2 sensor, reset the ecu and it ran totally fine for about an hour. Then as im driving ~80km/h it...
  3. IS200 Owner's Forum
    Hey everyone! I started to have my problems few months ago when I was going for a drive and all of a sudden the car started to like shake when idling and it didn’t have any power when I accelerated. So I thought it was a misfire problem or something (I got the P0303 code) and I replaced the...
  4. General Discussion
    One day when I stopped driving I walked to the front of my Is300 and heard my coolant boiling (it was a hot day). I replaced the bad radiator cap and drove it home when it read as overheating. Wasn't sure if it was air or if it was truly overheating but I flushed it and replaced it anyway (the...
  5. General Discussion
    Throwing P0300/303/304 codes for random misfire and cyl 3/4 misfire and 2 mechanics have already failed to diagnose. Car runs normal after clearing the codes and resetting ECU on cold start but codes will come back at warm start or warm idle. Warm start/idle is also very rough, guaranteed...
  6. Basic Help & Repair
    ive had a misfire in cylinder 3 causing the engine and trac light to flast at me. ive replaced the spark plugs, coils, wires, and injectors. its still giving me the same code soon as i start it back up. ive cleared the codes and they come right back on. what could it be?? O2 sensor?? i dont...
  7. Basic Help & Repair
    Am getting a random throttle hang and misfire only when car is in gear no throttle engagement and no clutch engagement. When I push in throttle misfire will continue until I take engage the clutch and take it out of gear Recent maintenance Spark plugs Coils Timing belt/ belt tensioner Timing...
  8. General Discussion
    I have a misfire anywhere from 1500-3000rpm if I’m slightly on the throttle. If I lay into it a little more instead of barely pressing the gas it won’t misfire It’s a very wierd misfire as if it just skips one fire or the fuel is cut for .1 second then is perfectly fine and won’t happen unless...
  9. Basic Help & Repair
    I have two key issues with my 2001 Lexus IS300. I managed to fix one, however after countless repairs I can't fix the second. The first issue is that the car wouldn't respond to the acceleration pedal being pressed down. I managed to fix this issue by replacing the the throttle body. The...
  10. General Discussion
    My is300 2002 makes random misfires more frequently at cylinder 2 but also 1 2 3 4 but rarely. Idle run great I looked a little at everything related to the ignition but I found nothing. Any idea before compression test? 250 000 run great but check engine light on. Any idea what it could be?
  11. General Discussion
    I’ve been having misfire issues for a while now. I thought it was because of a vacuum leak so I replaced all the cracked hoses but the misfire continued. One of the hoses I replaced is pretty kinked but still has air flow, I attached a photo of it (the one that bends downwards in photo) does...
  12. Basic Help & Repair
    Hey people, it seems I am in need of some assistance... I recently purchased a '02 IS200 (700miles ago @ 91k) ran absolutely perfectly for about 650miles or so before I started to experience low idle rpm's and what seemed to be a random misfire. Happens mostly at idle and little acceleration but...
  13. Basic Help & Repair
    Okay, so here's my tale of sorrow... when i first got my 5 speed IS, i thought it was running fine. Yet, somehow there was popping on idle. I didn't think much of it. I then proceeded to buy cheap chinese coilpacks, and they eliminated any and all popping, however, they quit after only about 4...
  14. General Discussion
    Valves, Lifters, Cams, Hoses, Radiators, Pumps, Headers, Intakes.. etc etc. All have been replaced, Engine is Oil free and could cook a egg on it. New plug wires, New Plugs, New Vacuum hoses, yada yada. As I said in a post a couple months ago, car has had "dodgy" if that term should even be used...
  15. Basic Help & Repair
    I have a 2002 Lexus is300 that’s been acting up recently. Car would idle really rough on idle occasionally and would lack power. I took it to get scanned and got codes for random misfires in all 6 cylinders and also got code P1349. I first did a tune up changing all spark plugs and oil, filter...
  16. Basic Help & Repair
    Heading to work the other morning I felt the car start running a little rough. At first I thought it might have just been a hiccup, after all it was cold and the car's got ~250k on the clock. Paid closer attention and felt it definitely missing, so I turned around and limped back home. The car...
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