N231BN Posted November 17, 2018 Report Share Posted November 17, 2018 Any chance it's hooked up backwards? Not just at the splice but in the plug at the unit. Was the oil temp option ordered with the unit or added on later? Quote Link to comment Share on other sites More sharing options...
ArtVandelay Posted November 17, 2018 Report Share Posted November 17, 2018 Mine is where you have re-located yours too - good job :-) Wire routes with the unconnected prop heater underneath the barrels to go through the firewall on the starboard side with the starter cable (and the rest of the JPI leads) Not a great picture - EGT and cylinder probes are on the stand-offs with the lower HT leads, Oli temp just visible at the back You are not suppose to tie the wires together with the ignition wires, it can cause erratic readings. Quote Link to comment Share on other sites More sharing options...
LANCECASPER Posted November 17, 2018 Author Report Share Posted November 17, 2018 6 hours ago, CWM20f said: There is a dedicated ground wire from the JPI unit the should be grounded to engine block. If not or if bad connection it could cause crazy readings. All of the other temperatures on the JPI are fine so it must be grounded. Quote Link to comment Share on other sites More sharing options...
LANCECASPER Posted November 17, 2018 Author Report Share Posted November 17, 2018 5 hours ago, teejayevans said: You are not suppose to tie the wires together with the ignition wires, it can cause erratic readings. Those pictures are from someone else's post whose JPI works fine. Quote Link to comment Share on other sites More sharing options...
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