No more ping, ping after a new regulator!!! Thanks for the help and I hope this is helpful to others who wonders about ping, ping. Well, it runs great, cleared the code, haven't seen it yet. So I found an empty vacuum port on the throttle body that had greater vacuum. Well, I figuired (FOR TEST ONLY), if I can get more vacuum to the regulator, this well give me more fuel. The vacuum diagram under the hood showed the hose routing, from fuel pressure regulator to intake tube. The fuel pressure regulator sits at the end of bank 1 to compensate pressure. This all makes sense, because the main fuel line goes throught bank 2 then bank 1. Plus the short term fuel trims was throwing double digits on the PID list, like you said. Thanks for the points! It turns out that my fuel pressure regulator isn't working as well, this making my fuel run lean in bank 1. lockout service, jump starts, fuel delivery up to 3 gallons, no more than 2 times per month, and towing for mechanical breakdown or collision recovery to the nearest. Book a Test Drive 2023 Sequoia Pre-Owned Vehicles. Use throttle body cleaner and spray it on a COLD intake manifold- any leaks will be evident by the fuel trim readings(short term) going extremely negative double digits(can also be accompanied by engine stumbling). Used 2019 Toyota Tacoma TRD Sport for sale - only 38,997. IFso, the PCM is trying to add fuel to compensate for a lean condition. Watch the PID and see if the STFT is going positive double digits. There is no adjustment, the fuel trims ARE the adjustment. First, check fuel pressure,and be sure that it's not low, causing the engine to run lean.
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