ride4thrill Posted October 24, 2007 Share Posted October 24, 2007 hi I have a 87 pathy, 3.0.. I have been having some problems with the RPM. When the truck is idleling my RPM goge from 1000 to 100 ant back up on its own. It almost dies on me. this is what i have done to it New Plugs and wire set. Check pump and pump presure. New fuel filter. new distributor cap (not the roter.) Please help its killing my gas. Link to comment Share on other sites More sharing options...
Casey.T Posted October 24, 2007 Share Posted October 24, 2007 Have you ran your codes???? Could be O2, MAF, TPS, EGR... Codes please... Pinned Sticky in the "How To" Section... Link to comment Share on other sites More sharing options...
Alkorahil Posted October 25, 2007 Share Posted October 25, 2007 (edited) Have you ran your codes????Could be O2, MAF, TPS, EGR... Codes please... Pinned Sticky in the "How To" Section... Mine did this awhile back, although not to this extreme, it would wander back and forth from 600 to 1200, warm or cold. I replaced the Engine Temperature Sensor and it all went away. But Casey is right, run your codes it might tell you. Edited October 25, 2007 by Alkorahil Link to comment Share on other sites More sharing options...
unccpathfinder Posted October 25, 2007 Share Posted October 25, 2007 is the engine actually jumping around or is it just the RPM gage? my gage went bonkers all the time... Link to comment Share on other sites More sharing options...
ride4thrill Posted October 26, 2007 Author Share Posted October 26, 2007 Thanks for the help I ran the codes and came back fine. I want to try the Temperature Sensor I went to the auto store and 3 came up Ambient Air Temperature Sensor Coolant Temperature Sensor Ignition Air Cleaner Temperature Sensor Wich one could it be? I want to say the coolant one because it is the cheapest. Please help one more time. Link to comment Share on other sites More sharing options...
Alkorahil Posted October 27, 2007 Share Posted October 27, 2007 Coolant Temperature Sensor Its about 2.5 inches long. IT sits on top of the water intake up front on the right of the engine (drivers right). The original factory sensor should have a blue plug on the end. IT is up front and on top Should cost about $35 from a dealership. Assuming you have a VG30 engine the old part number is 22630-V5010 but there was a part supersession and I think the new number is 22630-51E02. Any dealers computer will show the new part number. The one from the dealer comes also with the copper O ring for it. Thanks for the help I ran the codes and came back fine. I want to try the Temperature Sensor I went to the auto store and 3 came up Ambient Air Temperature Sensor Coolant Temperature Sensor Ignition Air Cleaner Temperature Sensor Wich one could it be? I want to say the coolant one because it is the cheapest. Please help one more time. Link to comment Share on other sites More sharing options...
Alkorahil Posted November 3, 2007 Share Posted November 3, 2007 Coolant Temperature SensorIts about 2.5 inches long. IT sits on top of the water intake up front on the right of the engine (drivers right). The original factory sensor should have a blue plug on the end. IT is up front and on top Should cost about $35 from a dealership. Assuming you have a VG30 engine the old part number is 22630-V5010 but there was a part supersession and I think the new number is 22630-51E02. Any dealers computer will show the new part number. The one from the dealer comes also with the copper O ring for it. The new part number for the senosr is 22630-51E02 Link to comment Share on other sites More sharing options...
packie88 Posted November 14, 2007 Share Posted November 14, 2007 my pathy did that when a fuel injector went bad. almost died but would come barely back to life and then back up to normal. Link to comment Share on other sites More sharing options...
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