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  1. R

    Rex is toast... Any way to stop maintenance cycle?

    Same here. 2015 REX. I ended up draining all gasoline and it runs like BEV now.
  2. R

    I3 REX 2015 125001,125002,125003 Misfire

    I disconnected the connector to the throttle body and tried to start the engine. And it started and kept running without stopping this time. The AFR went down to around 1 instead of 1.99. It sounds a little rough but not too bad, expected. When I manually close the throttle a little it...
  3. R

    I3 REX 2015 125001,125002,125003 Misfire

    Injection pattern does not look great, I will try to clean first and possibly replace them.
  4. R

    Can anybody post a ISTA RDME diagnosis on a good working REX?

    This would be super useful to fix REX problems.
  5. R

    I3 REX 2015 125001,125002,125003 Misfire

    I just tested the after cat oxygen sensor using ISTA, RDME diagnosis page. It always reads 1.28V. It is a four wire sensor so it is probably not wideband, so it may need to completely heat up before reading anything good. It would be really nice to have a good working RDME test values on this...
  6. R

    I3 REX 2015 125001,125002,125003 Misfire

    Hi spartacus68- That number is for after cat oxygen sensor. I did not check that one yet. Do you think your problem was solved with this sensor in the end?
  7. R

    I3 REX 2015 125001,125002,125003 Misfire

    I just did the compression test, they are 241 and 242 PSI. Also, I attached injection test bulbs on the outputs, it only lights up for 2 seconds and quits while the engine is still cranking. It seems to just not like something before engine has a chance to start up.
  8. R

    I3 REX 2015 125001,125002,125003 Misfire

    I just changed the crankshaft sensor and it still has the same codes. :(
  9. R

    I3 REX 2015 125001,125002,125003 Misfire

    I thought I should share my experience with this problem so far. I got the drivetrain error message come up on the highway, did not get any other warnings before. I am following the ISTA test plan for the error. Here is what I have done so far. 1- Replaced Fuel Pump Relay 2- Spark Plugs 3-...
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