DeVille V8-252 4.1L VIN 8 FI (1983)
Throttle Body Injection Identification
1981-1982 - Service units with build date code after 2-244 do not have welded TPS screws.
If TPS adjustments are performed by tapping; bending, or prying the TPS assembly instead of loosening the TPS screws as described above, immediate
or eventual binding of the TPS may result. Since proper acceleration enrichment depends on the quick response of the TPS to increases in throttle angle,
a binding TPS will result in a hesitation or stumble.
