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skizzik · 09-06-2010, 07:05 PM

Latest update:

I've thoroughly checked for vacuum leaks - by spraying throttle body cleaner on all vacuum hoses and at the base of the throttle body and visually inspecting everything - and can't find any leaks.

I'm getting flash codes for the TPS and MAP sensor, even after replacing the TPS. I then decided to concentrate on the MAP error and assume the TPS error will go away when the MAP error does.

I noticed that the output of the throttle body (the part where the vacuum hose connects out to the MAP sensor) was clogged with gunk. I sprayed throttle body cleaner into it and tried cleaning it with q-tips and one of the cottony q-tip ends got stuck in the throttle body.

Is that worth worrying about? Is there a better way to clean that area? Once I'm sure that area is clean, my next step is going to be replacing the MAP sensor.

09-06-2010, 07:05 PM	#31
skizzik Registered User Join Date: May 2010 Location: Austin,TX Posts: 35	Re: '87 R10 suburban 350 V8 TBI stalls at lights - suggestions? Latest update: I've thoroughly checked for vacuum leaks - by spraying throttle body cleaner on all vacuum hoses and at the base of the throttle body and visually inspecting everything - and can't find any leaks. I'm getting flash codes for the TPS and MAP sensor, even after replacing the TPS. I then decided to concentrate on the MAP error and assume the TPS error will go away when the MAP error does. I noticed that the output of the throttle body (the part where the vacuum hose connects out to the MAP sensor) was clogged with gunk. I sprayed throttle body cleaner into it and tried cleaning it with q-tips and one of the cottony q-tip ends got stuck in the throttle body. Is that worth worrying about? Is there a better way to clean that area? Once I'm sure that area is clean, my next step is going to be replacing the MAP sensor.