Maxima Forums - View Single Post - Would Bad injectors cause the engine to miss while driving???

jakeru · 08-10-2009, 06:55 PM

As an update - I tried using chemical cleaning methods on my maxima's injector connectors: first brake parts cleaner (to clean any grease), then baking soda+water (to neutralize any acid salts), then hot sauce (to eliminate any copper oxide) and anyway I found there was some "layer" over the connector that prevented it from working. What was effective in removing it down to bare copper was, scraping the terminal with a jewelry/micro-sized, flathead screwdriver.

Unfortunately, cleaning the terminals didn't repair two injectors which were reading in the kiloohm area (rather than the expected ~ 12 ohm area), so oh joy, I get to replace some injectors again.

I was surprised I got the high ohm readings on two, because usually the engine fired on all six, it only intermittently dropped down to five or four cylinders and usually running it a while cleared it up.

I am imaginging heat causes the electrical circuit inside the injector to be connected, or go disconnected somewhere and stop the injector from working.

08-10-2009, 06:55 PM	#12
jakeru Member 1989 Maxima GXE Join Date: Oct 2002 iTrader: (0) Posts: 73	As an update - I tried using chemical cleaning methods on my maxima's injector connectors: first brake parts cleaner (to clean any grease), then baking soda+water (to neutralize any acid salts), then hot sauce (to eliminate any copper oxide) and anyway I found there was some "layer" over the connector that prevented it from working. What was effective in removing it down to bare copper was, scraping the terminal with a jewelry/micro-sized, flathead screwdriver. Unfortunately, cleaning the terminals didn't repair two injectors which were reading in the kiloohm area (rather than the expected ~ 12 ohm area), so oh joy, I get to replace some injectors again. I was surprised I got the high ohm readings on two, because usually the engine fired on all six, it only intermittently dropped down to five or four cylinders and usually running it a while cleared it up. I am imaginging heat causes the electrical circuit inside the injector to be connected, or go disconnected somewhere and stop the injector from working.