02-09 Vortec 4.2L I-6 Engine and Drivetrain
Few days ago I got the P0510 code “closed throttle position switch” on my 03 TB 4.2 with 102K km (63K miles)
I already had plans to clean the throttle body before summer so I’m going to do that now and hope it will solve the problem and I wont have to buy a new throttle body. In the last few...