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Before I started these repairs, I was seeing 40 to 43 MPG on the dashboard. However, I realize now that those numbers were 'faked' by my tire...
Update: I cleaned the MAF sensor with the correct CRC MAF Cleaner and re-installed it. I also Reset the 12V battery to clear the +6.25% LTFT...
That’s a fair point, bisco. The warm-up cycle definitely takes a bite out of the average on shorter trips. However, even accounting for the...
Hi Mendel, no current codes. I've checked with both Techstream and a generic OBDII scanner, and there is no Check Engine Light or pending codes...
That’s a great tip, Mendel. I didn’t realize it was good for other electronics too. I’m heading to the store now to get a can of CRC Mass Air...
Thanks, ASRDogman and Mendel. I'll take your advice and try a 'redo' cleaning with the proper CRC MAF Sensor Cleaner today. It's much cheaper than...
Final Update with Trip Data: I finished the 36.2-mile round trip from Plano to Irving (mostly highway). Here are the results: MPG for the trip:...
Thanks for the chart, bisco. It’s very helpful for comparison. To clarify my car's behavior: My engine does shut off at stoplights as long as the...
Hi Mendel, thanks for following up. Regarding the MAF cleaner: The 'household dry cleaner' I used was a generic solvent I checked my LTFT (Long...
Thanks, ASRDogman. That comparison is very helpful. Since you are getting 42 city/48 highway on 15-inch wheels with efficiency tires, it makes me...
Thanks, ASRDogman. I’ll follow your advice and back the tires down to 38 PSI to stay on the safe side. To answer your questions: Hybrid...
Thanks again, ASRDogman. I checked the sticker and it says A23, so the battery was manufactured in January 2023. It is about 3.5 years old. I...
I also want to add that a few months ago, right after my alignment, several dash lights (VSC/ABS) popped up. I had to use Techstream to perform a...
Thanks for the detailed feedback, ASRDogman. I want to clarify my 12V data points to be exact: 1. The 12V Battery: Resting Voltage: My...
UPDATE: 12V Test Results and OBDII Live Data (MPG Drop 2010 Prius) Hi everyone, thanks for the previous advice. I have some data updates and...
Thanks, bisco. The highway MPG being 40+ makes me think the EGR work and the new hybrid pack are solid. I suspect the city MPG is suffering...
Thanks, bisco. I don't know exactly how old the 12V battery is, but seeing 10.9V on the MFD (Multi-Function Display) makes me think it has a dead...
Thanks, Mendel. Yes, this is my first time doing a full EGR overhaul (cooler, valve, and manifold cleaning). Regarding the tires: When I bought...
