Hi Greg, I’ve been chasing down high idle and enrichment condition for so long and finally came to the conclusion that my Speedo is buggered or wrong. LH2.4 needs a speed signal for idling and off throttle idle compensation etc.
Possibly the IC chip in the speedo itself is buggered. the needle jumps around a bit when I’m rolling forward less than 20km/h and It has always read 15km faster than what I’m actually going.
Pin 34 on ECU should see 12V on ignition but I’m seeing 10.5 and when driving up to approx 60kmh it shows a voltage drop down to 8.5-9V. Apparently it should be around 6-7V when travelling over 10km/h? At least that’s what I take from this:
ive also got the wrong front glass on my cluster as the dash lights are all for an early k-jet model! That’s my fault though, I swapped it out before I knew much about these cars.
Will pull it out and get a photo of the back of cluster today. Speedo number on front is K6091.