Your Chevy Blazer utilizes either a Throttle Body Injection or Central Port Injection EFI system, depending on the year. The Chevy Blazer MAP sensor is a...
The OBDII trouble code P1121 is due to your throttle position sensor signal being lower than expected by your ECU. Problems that arise from this OBDII...
If there’s one engine family that completely rewrote the rules for affordable horsepower, reliability, and aftermarket support, it’s the GM LS engine...