Timb Posted March 4, 2023 Share Posted March 4, 2023 I have a 1998 Nissan Pathfinder it will idle in sputter roughly during idle misfires wants to die out like it’s not getting gas I’ve change the fuel Filter spark plugs wires cap ignition rotor mass airflow sensor the exhaust will get so hot that it glows Thought it might be a clogged Cadillac took the O2 sensors out pre-Cadillac converters and still doing the same idols roughly like it’s Miss phone RPMs are jumping up and down no power going up hills and will not read past 2000 to 2500 RPMs Link to comment Share on other sites More sharing options...
Slartibartfast Posted March 5, 2023 Share Posted March 5, 2023 It sounds like it's in limp mode. Exhaust getting that hot is probably due to the misfire (unburned air/fuel mix hits the catalyst and burns there instead). First thing to do is run trouble codes, see what the computer thinks is wrong. If that gives you a cylinder-specific misfire, figure out why that cylinder isn't hitting. If it's not cylinder-specific, could be mixture. Check the rubber tube between the MAF and the throttle body. 1 Link to comment Share on other sites More sharing options...
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