Dealing with car troubles can be frustrating, especially when your check engine light comes on and you’re not sure why. For owners of flex fuel vehicles, like my 2013 Toyota Tundra, a common yet perplexing issue is related to the alcohol percentage reading. This was exactly the problem I faced, and thankfully, I found a solution with a Car Scan Tool That Resets Codes, specifically the Launch X431 CRP919E. Let me share my experience and how this tool can be a game-changer for your DIY car maintenance.
Like many others, this past winter, my Tundra started exhibiting hard starting issues. It would crank excessively, stumble upon starting, and reek of fuel – even though I only use regular gasoline. My gas mileage also took a hit. After some digging, I discovered the culprit: a high alcohol percentage reading. The engine control module (ECM) mistakenly thought I was running E85 fuel, leading to these problems. The technical service bulletin T-SB-0166-19 (https://static.nhtsa.gov/odi/tsbs/2019/MC-10170730-9999.pdf) confirmed this issue as a known problem.
My first thought was to take it to the dealership. However, the quote of $1200 for the repair, coupled with the fuel pump being on backorder, was a major setback. Plus, I read reports online from other Toyota owners who had the dealer fix, only for the problem to return later. I needed a more immediate and potentially long-term solution. Research pointed towards resetting the Alcohol Fuel Density level to zero as a viable fix.
I explored the option of using a Techstream cable with software, often found at lower prices online. While some users reported success with this method, many others described headaches and difficulties getting the software to work correctly. Spending hours troubleshooting software wasn’t appealing, and a genuine Toyota Techstream license for just two days seemed unnecessary for this single task.
That’s when I started looking into car scan tools that reset codes and offered bidirectional control. My aim was to find a tool that could specifically reset the Alcohol Fuel Density level on my Tundra without breaking the bank. After extensive research, the Launch X431 CRP919E emerged as the tool that fit my needs. I checked out other options like the XTOOL D7 and D8, but unfortunately, XTOOL confirmed they couldn’t reset alcohol levels on Tundras at that time.
Before purchasing the Launch X431 CRP919E from Amazon, I contacted the seller to double-check if it could perform the reset I needed. They confirmed its capability, so I decided to give it a try. Being new to scan tools, I was initially a bit apprehensive, but the process turned out to be surprisingly straightforward.
Upon receiving the tool, the first step was to run all the software updates. This is crucial to access the Special Functions, which include the Toyota-specific resets. After updating, I connected the Launch X431 CRP919E to my Tundra and checked the Alcohol Fuel Density Level – it was a staggering 85%! Confirming my suspicion, I navigated to the Diagnose menu, selected Toyota system, then ECM-ECT (engine control module), followed by Special Functions. Finally, I selected and ran the “Fuel Density Learning Value Reset.” This function, within this car scan tool that resets codes, literally took just seconds to reset the alcohol level back to zero.
The immediate improvement was remarkable. My truck now starts instantly, runs smoother, and my gas mileage has noticeably improved. I’ve since rechecked the alcohol percentage level, and it has remained at zero. If the issue ever returns, I know I can quickly resolve it myself with the Launch X431 CRP919E in just a couple of minutes.
This experience not only solved my immediate problem but also equipped me with a versatile car scan tool that resets codes and performs many other diagnostic and maintenance functions. It’s not just for Toyotas; it works on a wide range of vehicles, including my wife’s BMW, allowing for resets and diagnostics across our household fleet.
If you’re experiencing similar flex fuel issues with your Toyota or simply want a powerful car scan tool that resets codes and offers bidirectional capabilities for various car maintenance tasks, the Launch X431 CRP919E is definitely worth considering. It’s a cost-effective alternative to expensive dealer repairs and complex software solutions, putting the power of automotive diagnostics and repair right in your hands.
