Stuttering under load - The Saga of Njordi

[Boerderij_Kabouter]

Idle is still going great... however, I have now started encountering an extreme stutter and loss of power. It is intermittent, but has struck 2 of the last 5 times out for test drives. I am quite sure this problem has nothing to do with any leaking oil seals or anything like that, and I do not think it has anything to do with the throttle body/EGR/IAC.

Checked the diagnostics and I have the following codes active after doing a battery reset:

• 22 - Water temp sensor signal - open or short in water temp sensor circuit for 500 msec or more
• 24 - Air intake temp sensor signal - open or short in intake air temp sensor circuit for 500 msec or more
• 32 - Air flow meter signal - open or short detected continuously for 0.5 sec. or more in air flow meter circuit
• 41 - Throttle position sensor signal - Open or short detected in throttle position sensor signal for 0.5 sec. or more

So it looks like it is multimeter time. Would love to hear if anyone has a common cause for this combo.

All these issues arise from connections on one half of the center ECU connector. I am going to take a look at that first. Maybe it is just smooshed or melted or somehting.

[Boerderij_Kabouter]

Found a similar problem statement in this thread: https://www.toyotavantech.com/forum/...ta-please-help! This Previa had the same error codes and the same symptoms.

The issue ended up being a bad spark plug cable. So I am adding that to my list of things to check.