knock 52 &55

[beyond custom]

seems to be the month for 1u's lol ok strange one, customer brang car in that another gentleman has done in a surf, which he used the orginal surf mounts, and when you rev the engine, it has exsesive engine movement and I mean over an inch. when you give it a good rev or drive it, always pops up code 52 &55 even at low throttle. think both knock sensors could be picking up on the exsesive movement? wires are all fine, shield is grounded fine cant see both sensors being stuffed? and this may be contributing to poor fuel economy?? as o2 sensor fine and fuel pressure at standard spec

and I believe it has another celsior computer in it....

any input greatly appreciated.

leon.

 

[beyond custom]

problem solved.

 

[gloverman]

what was it? Cheers

 

[beyond custom]

believe it or not, both knock sensors faulty, before I removed the manifold etc, un plugged one through gap, clipped another in and held against block to check, reset computer, then only other came up, so changed both, all sweet.
all my years doing toyota engine's never had a faulty knock sensor, let alone 2 lol.

leon.

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