Cleaning throttle plate and MAF sonsor - Regal Buick Cars & Trucks

What are the fault codes you get on a scan test?

Clean the throttle body on the inside, especially where the plate sets and the back side of the plate. Also clean the MAF sensor between the throttle and air filter. Use brake clean and a toothbrush, just spray down the MAF sensor. It'll take a second or two to start, then spray some down the throttle as you rev it up. This should take care of the sputter.

Clean the throttle /throttle plate, MAF(mass air flow sensor) (if you have one), and the idle air control motor. You can use brake clean and a toothbrush. But not on the MAF sensor. Just spray it with brake clean.

Here's what you do. Remove the air plenum/duct from the throttle body. Pull the mass air flow(MAF) sensor from that. Use brake clean and spray the MAF from both sides(do not use a brush or fingers to clean it, sensitive). Use the brake clean and a toothbrush to clean the throttle body, clean especially around where the throttle plate rests and the back of the plate, plus as far as you can in the throttle body. Start the engine (it will take a second or two to start because of the brake clean), then rev it up and spray brake clean in the throttle. Throttle it, as it will want to die. Do this for a few seconds or so. Turn it off and reassemble the plenum. Check engine light will go off as soon as you reconnect the MAF. If you still have a slight stumble, Then remove the hard plastic tube from the plenum by the throttle body. Start the engie, after it is warmed up, pour water down that hole while revving up the engine, as it will want to die. This will clean all the carbon build up off the pistons and valves. Again do this for a few seconds. If you still have the stumble, then you have bad valve seats.Where the vavle sits on the head. To fix this is $800+

no clean it , use CRC Maf sensor cleaner, from 12" distant
carefully .
the maf can last the life of an engine, 300k, easy, if cleaned time to time... at the 30k service?
first google hit P1 means toy only code, (factory)
P2112 Toyota - Throttle Actuator Control System - Stuck Closed

Possible causes
- Throttle Body Plate Binding
- Faulty Throttle Actuator
- Throttle Actuator harness is open or shorted
- Throttle Actuator circuit poor electrical connection

Clean the Mass air flow (MAF) sensor and the throttle body. I use brake clean and a tooth brush for the throttle. Clean around the throttle plate and the back of it as best as possible. Start the engine (it will take a second or two) Then rev it up and spray some into the throttle. Just spray the MAF, both sides, don't use the brush on it, you could break a $100 part.

That is probably the Mass air flow meter. You would take the hose off between the MAF and the throttle body to access the throttle plate. Cleaning the MAF can damage it.

Computer does that

Clean throttle plate-CRC Throttle Body Cleaner
Clean MAF Sensor-CRC MAF Cleaner
Install new spark plugs--70,000 miles- Champion 7989 one piece plug
New O2 Sensors-100,000 miles,front 2
only,closest to engine

Air Filter-clean or replace
Clean MAF Sensor--CRC MAF Cleaner
Clean throttle plate-CRC Throttle Body Cleaner
Spark Plugs- replace every 70,000 miles
Check -for vacuum leaks on ALL ducting and hoses
Replace front 2- O2 Sensors-ones closest to motor ,every 100,000 miles

Have TPS Sensor --tested with an oscilloscope for opens

V8
1,2,3,4, Pass Side,front to back
5,6,7,8, Driver Side,front to back

1,5,4,2,6,3,7,8

Clean MAF--CRC MAF Cleaner
Clean Throttle plate--CRC Throttle Body Cleaner