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JRSC trouble with Map Sensor Circuit
I got a CEL with DTC 3 Map Sensor Circuit problem.
The last time I got this, I found the connector to the Fuel Enrichment relay was bad, so I replaced it with a soldered joint. This time, the connection seems to be okay but I've been getting a stuttering engine at low speeds (< 5 mph) or accelerating slowly from a stop. It stalled once when trying to accelerate hard out from a low speed.
I suspect the Fuel Enrichment Relay has gone bad but I don't know how to troubleshoot it. Any one know what tests I can subject it to in order to verify its operation? I've considered getting the MAP controller to replace it but I don't think if it will fit under my Neuspeed Strut bar since the sensor connector is already tight under the bar.
BTW, I'm running a D16Y8 with the stock 6psi boost, Walbro fuel pump, and Cartech FMU. I've been running this setup for almost 2 years now.
On another note. I don't konw if my fuel pump is going because I hear a lot of vibration from the tank and pump when the tank it's less than half full, and especially when under braking. Anyone have any experience with their pump going bad?
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