Dreaded 52 code

Asked by Jan 07, 2017 at 10:01 AM about the Toyota 4Runner

Question type: Maintenance & Repair

I took the3.0 from a 92 2x4 toyota4runner, installed it in a90 toyota4 runner 4x4, no knock sensor plug on the engine or wiring harness on 92, plug on wiring harness for 90, it shot a52 code, refuses to idle rt, computer wont delete code!! Have grounded plug, NODDA! Have put wire & sensor on plug,Nodda!!

2 Answers

60,735

Was the replacement engine running when it was removed from the other vehicle?

yes

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