2TR-FE MAF Sensor & Throttle Body Cleaning

iitywygms · Apr 20, 2020

Did this today along with a plug change. Really didn't notice a difference. But at 105k with no known cleaning of either the maf or throttle body it was due. Plugs had about 35k on them and they looked good but changed anyway.

rustyfromskowhegan · Mar 19, 2021

pv2smurf said: ↑

After doing the above on my 2009 2.7L (2tr-fe) as well as a new cylinder head and cylinder head gasket I have some updates.

I just called the local dealership and talked to my buddy who is the trained one for the Tacoma's and tundra's. He said when I reconnect the battery (bc it's been d/c for about 72hrs) to hold my foot on the floor with a WIDE OPEN THROTTLE before I turn thr key on. Did that and held it for 10 seconds. Turned truck off and repeated 3 or 4 times. Then I checked it with a Autel scan tool to verify the wide open throttle was relearned.

He told me the truck after a dead battery (which resets the ECM) takes about 30miles of driving to adjust to thr crappy sensors the system has. After about 80 miles it seems to idle MUCH BETTER and doesn't quit at a red light like it did 2 times within the first 10 miles.

Hope this information helps someone else in the same situation as me
Click to expand...

Thanks for the info. I’ll revive this one... is the procedure 1. Key in on position but not started. 2. WOT for 10s. 3. Turn key to off position. 4. Repeat?

Or is key in completely off position? Seems like it would need to be in the on position for the signal from floored gas pedal t reach ecm?

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2TR-FE MAF Sensor & Throttle Body Cleaning

After cleaning, do you notice any different engine behavior on a cold start?

NO

Yes, I see a rise in initial RPM

Yes, I see a fall in initial RPM

Yes, I see erratic RPM behavior

Yes, No, What? I was hoping to seee bewbs

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iitywygms Well-Known Member

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rustyfromskowhegan Well-Known Member

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Welcome to Tacoma World!

2TR-FE MAF Sensor & Throttle Body Cleaning

After cleaning, do you notice any different engine behavior on a cold start?

NO

Yes, I see a rise in initial RPM

Yes, I see a fall in initial RPM

Yes, I see erratic RPM behavior

Yes, No, What? I was hoping to seee bewbs

#41 iitywygms Well-Known Member

#42 rustyfromskowhegan Well-Known Member

Products Discussed in Entire Site Forum: 4 Cylinder

#41
iitywygms Well-Known Member

#42
rustyfromskowhegan Well-Known Member

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