Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Nissan aims for "more complete burn" with new injectors

tjts1 · 07-17-2009, 02:15 PM

I'm not really familiar with most GM injectors. What you can do is remove your stock injector or find an identical one at the JY, note the part number stamped on the side, the type of nozzle (single pintle, 4 hole etc) measure the resistance across the 2 pins in the electric plug and measure the distance between the 2 rubber O rings at each end. Then you can determine if there is an upgrade available for your car. Generally speaking for cars using Bosch injectors, the cut off around 1995-1997 when pretty much all cars switched from EV1 style to EV6 style. GM didn't use bosch injectors in most of its cars but they might be compatible.

A couple more articles on injector swaps for fuel economy.
http://autospeed.com/cms/A_110767/article.html
http://autospeed.com/cms/A_0102/article.html

EDIT: I forgot to mention that the resistance across the 2 pins on the injector is VERY important because there are 2 families of injectors. Low impedence (less than 10ohm) and high impedance (10-16ohm). These 2 families of injectors should never be mixed. If you car has low impedance injectors, ONLY swap low impedence injectors. If your car has HIGH impedance injectors, ONLY swap high impedance injectors. This is VERY IMPORTANT! You can damage your ECU if you mix the two. Always check the resistance. The vast majority of cars built in the last 20 years use high impedance injectors. But you never know for sure until you check. You can move around inside each family of injectors. For example you can safely replace at 14ohm injectors with a 12ohm injector. But you can't use a 2ohm injector in a 10ohm or higher stock injector car.
More info
http://www.hondata.com/techlowohminjectors.html

07-17-2009, 02:15 PM	#10 (permalink)
tjts1 Banned Join Date: Feb 2008 Location: california Posts: 1,329 Thanks: 24 Thanked 161 Times in 107 Posts	I'm not really familiar with most GM injectors. What you can do is remove your stock injector or find an identical one at the JY, note the part number stamped on the side, the type of nozzle (single pintle, 4 hole etc) measure the resistance across the 2 pins in the electric plug and measure the distance between the 2 rubber O rings at each end. Then you can determine if there is an upgrade available for your car. Generally speaking for cars using Bosch injectors, the cut off around 1995-1997 when pretty much all cars switched from EV1 style to EV6 style. GM didn't use bosch injectors in most of its cars but they might be compatible. A couple more articles on injector swaps for fuel economy. http://autospeed.com/cms/A_110767/article.html http://autospeed.com/cms/A_0102/article.html EDIT: I forgot to mention that the resistance across the 2 pins on the injector is VERY important because there are 2 families of injectors. Low impedence (less than 10ohm) and high impedance (10-16ohm). These 2 families of injectors should never be mixed. If you car has low impedance injectors, ONLY swap low impedence injectors. If your car has HIGH impedance injectors, ONLY swap high impedance injectors. This is VERY IMPORTANT! You can damage your ECU if you mix the two. Always check the resistance. The vast majority of cars built in the last 20 years use high impedance injectors. But you never know for sure until you check. You can move around inside each family of injectors. For example you can safely replace at 14ohm injectors with a 12ohm injector. But you can't use a 2ohm injector in a 10ohm or higher stock injector car. More info http://www.hondata.com/techlowohminjectors.html Last edited by tjts1; 07-17-2009 at 02:30 PM..