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  1. ikuo78

    O2 Fault Codes

    The service manual continues. This appears to be an uncommon control since both sensors are upstream of the main catalyst. >> Downstream Sensors - 3.7L Engine: Two downstream sensors are used (1/2 and 2/2). The downstream sensors are used to determine the correct airfuel ratio. As the oxygen...
  2. ikuo78

    O2 Fault Codes

    Isn't the downstream sensor also included in the air-fuel ratio adjustment loop? Below is an excerpt from the service manual. >> Two upstream sensors are used (1/1 and 2/1). The 1/1 sensor is the first sensor to receive exhaust gases from the #1 cylinder. They provide an input voltage to the...
  3. ikuo78

    Transfer slowly binding

    Does your rear differential have Trac-Lok? If so, I recommend a hard differential oil of about 75W-140 for limited slip differentials. I use mineral oil, which Sunday Racer will ruin in a day, but it lasts for a year. In Japan, I can buy 2 liters for about $30. Single grade Toyota genuine...
  4. ikuo78

    O2 Fault Codes

    O2 sensor failure is common, not just in Jeeps. I'm always grateful for sensors that work hard in harsh environments. If you suspect the air-fuel ratio adjustment system including the O2 sensor, Advanced scanners can be used to read air/fuel ratio corrections to determine how well your system...
  5. ikuo78

    What did you do to your jeep today?

    Thank you. I'm surprised it's a standard color! I looked it up and was surprised to find that there are 20 colors. Yellow is also nice.
  6. ikuo78

    What did you do to your jeep today?

    I went on a two-day trip to a beach 200km away. Recently in Japan, we often see FJs and Land Cruisers repainted in clay colors. There are only 4 days left until summer vacation, but about half of my schedule is empty, so if I'm not too drunk I should be able to replace the struts.
  7. ikuo78

    Calibrate Speedo AGAIN AFTER I Regear?

    To be more specific. The speed sensor reads the rotational speed of the tone ring next to the ring gear, so it is affected by tire size. The tone ring rotates at the same speed as the axle. Even if you change the ring gear, the tone ring usually does not change. What changes when re-gearing is...
  8. ikuo78

    CATACLEAN product. Does it work to clean your cats? Or will it kill them.

    It's okay to run in that condition to see what happens. Be careful not to burn the connector. Unplugging is a fault diagnosis method, so If you have a new sensor, it might be better to focus on replacing it. If you cannot remove it, you may be able to remove it by heating it with a heat gun or...
  9. ikuo78

    Transmission Dies After 1st Gear

    Is there an error code of P07**?
  10. ikuo78

    CATACLEAN product. Does it work to clean your cats? Or will it kill them.

    You may notice a change if you unplug the O2 sensor connector to prevent the faulty O2 sensor from sending incorrect commands to the ECU. If there is no change, suspect the injector and its control harness.
  11. ikuo78

    Possible broken top mount on new lift? Please help

    You're lucky it didn't fall apart during assembly. The Monroe (Tenneco) mounting plate I recently bought had one washer, one isolator, and four nuts. The studs were 10.8 grade which was a bit disappointing. The rod nut came with the Monroe shock. The shock came with assembly instructions, but...
  12. ikuo78

    CATACLEAN product. Does it work to clean your cats? Or will it kill them.

    I think the normal catalyst failure process is as follows. ・The O2 sensor is damaged. ・The air-fuel ratio is out of order. ・Soot increases. ・The catalyst is clogged. So did you replace the O2 sensor? Even if you clean the catalyst with soot coming out, it will not last long.
  13. ikuo78

    Project to divert KK coil to KJ

    This is what the inside of the rod cover looks like. Install a bump rubber with OD50mm and 40mm height under the ID11mm, OD50mm, t=4mm washer. Monroe's rod is slightly thicker than the stock. The rubber hole drilled with an 18mm drill fits tightly. The hole is smaller than 18mm. Even so, the...
  14. ikuo78

    Project to divert KK coil to KJ

    I have attached a photo of the discontinued KK top plate + full urethane mount. I tried to make it mainly composed of A90° ether type urethane. It can definitely lengthen the strut length by 10mm, but the bushing on the extension side is thin, so it's a bit stiff. The mount angle may also be...
  15. ikuo78

    Project to divert KK coil to KJ

    I tried assembling the strut. I tried extending the free length by 10mm using a washer, but I can't tighten the nut. The condition shown in the photo is 7mm. Although it is a nut with nylon, it does not touch the nylon slightly. I decided to make the free length extension 4mm. The spacer remains...
  16. ikuo78

    Project to divert KK coil to KJ

    Now, I have to think about how to easily remove the strut, which has become 43mm longer with the RC spacer. Looking at the photos the shop gave me when they replaced all the bushings on the front LCA, they used a spring compressor. The one on the left has a thin tab, so it seems like it was set...
  17. ikuo78

    Transmission temperature sensor

    I have heard that when the temperature exceeds 110℃, the ATF life is halved for every 10℃ increase. In other words, at 130℃, the lifespan will be reduced to 1/4 of the original lifespan. 110°C = 230°F 130°C=266°F
  18. ikuo78

    Project to divert KK coil to KJ

    Thank you. Sometimes I want to use a file or a saw to sharpen things. This time I was able to get a good file, so I can easily scrape rubber even at room temperature. I stole it from the company's FA department. No, I borrowed it. I'm doing it slowly, but please stay tuned.
  19. ikuo78

    Project to divert KK coil to KJ

    I added a taper to the bump stop attached to the rod. The motor screwdriver broke while I was cutting it. I want to adjust the shape of the bump stop a little more, so I'm going to buy a new motor screwdriver. Come to think of it, I once saw a Nissan Pathfinder bottom out. The shock had...
  20. ikuo78

    Actual downsides to spacer lift

    There are various spacers, If the strut length is extended like a top spacer, the knuckle will touch the strut. Since it hits the knuckle rather than the arm, thrust load is applied to the ball joint. If the strut length does not extend like Daystar 1.5, the coil will contract too much at full...

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