The code is for the MAP Sensor: I'm boosting 9.7psi but hardly get there without a code. At first i was running fish tank valves but that was throwing codes so i switched to the missing link it worked great for awhile but still i have problems. If anything im also thinkin it might be fuel since im always running rich. Or maybe the missing link is defected ? or has my map sensor gone bad ? the CEL comes on after about 5-6 psi

 

bump

 

the map sensor is seeing boost thats why it throws a code....

 

yeah, you could have a bad missing link. The missing link is supposed to block off the map sensor voltage from going to the ECU. if you're getting a code for it--which is a 3, no?--then it's not doing its job. What's your complete fuel setup?

 

bump...I'm having the same problem, have gone through 3 missing links and 2 map sensors and I still get the Damn Code 3...please help us out.