Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Hello, if you crossed the reference voltage from the ECU to the ground at the O@ sensor it may have damaged the ECU. What code is coming up and which engine does your frontier have? I'll pull the info so you can double check.
Thanks most all the codes reference heater circuit problems in the oxygen sensor. Look over the items below and run through the voltage checks that are shwon in order to determine if it's wiring or an ecm issue.
here's the rest