The Gas Log starting at 6-12-2011 is when I installed the injectors. Overall, I am pleased with how they've been performing.
The OEM injectors had three leakers of the four as I tested them outside of the vehicle and cleaned them.
The new style injectors have shortened start time in varying weather and temperature conditions. They also provide a smooth powerband and smooth cruising as steady speed.
I do admit that similar results may have been provided by cleaning and rebuilding the OEM injectors, but the new injectors are smaller, newer, and were easier to swap out rather than waiting for the OEMs to be rebuilt and not having a car to drive.
I have inspected the tops of my pistons and can still clearly read the "IN" and arrow marking on them and have no carbon buildup on them since running the new style injectors.
One thing to know about the new injectors: the very first start up of the car will require an ECU reset and relearn procedure as the new injectors flow a small amount more of fuel. The new amount of fueling is easily accounted and controlled by the ECU once the relearn is done. It only takes about 2 minutes for the ECU to compensate (the amount of time the OEM wide-band takes to heat up and start reading), once the ECU has learned the injectors offset, it runs beautifully.
If you read into my fuel log, there are some real-life influences on the mileage. Windy days (sometimes a week long), tire pressure differences, oil changes, towing, temperature fluctuations and finally, declining temps.
I've been using my block plug heater as of this week since the morning temps are upper 30's and afternoon temps are upper 50's. Recently my car had a problematic distributor cap. Which prompted me to rebuild my distributor with a new cap, rotor, ignition control module, and coil. I've also had to remove my extended side skirts, but was able to install my winter/Aero bumper. All of these things will impact the mileage as well.
But still, if someone sold these for around $100 I believe they would be worth it as an upgrade considering the lowest I've found to have someone clean, rebuild and flow-match the OEM injectors is $89.
I just wish the Non-Ethanol gas wasn't so expensive near me as I used to see an almost 4mpg gain using the old injectors with it. I would love to see how the new injectors do with it. But even with gas prices down, the 91 Octane Non-Oxy (Non-Ethanol) is 60¢ more per gallon than 87 Octane 10% Ethanol, this means that right now it's about $4.10 per gallon in my area now.
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