yo Jei,
I thought MAF was placed in the BII in 89 for only Calif models?
Unless a prev. owner did a swap, then it's right after the air filter box; in air tube (engine side of air filter box)
To be sure...
Look at your Vehicle Emission Control Information (VECI) Decal
an example, I pulled 1st # from List; VECI Label for 88
Light truck 2.9L EFI CAL # is 8-65F-R00
On-Line for Free at Ford.
Click "Quick Guides" in left panel;
Scroll to & CLICK VECI Labels "Provides Vehicle Emission Control Information (VECI) and a related calibration parts list."
Enter applicable info (
need to know your Calibration number from your B-pillar sticker).
Calibration Parts List will show MAP or MAF in the Listing w/Ford Part Numbers
Vacuum Diagram is the same as the one on the core support or hood or air filter cover.
Source: by Ford at
http://www.motorcraftservice.com
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Do you have any Trouble Codes or CEL?
MAP has a vac line running to it and is mounted on the fire wall, prob passenger side
GL!