My friend is being a huge idiot when it comes to his fuel pump... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Lej · 07-27-2014, 01:58 PM

So we put a rb20det into a s13 the other night, and we still have the stock KA fuel pump. I told him he needs to upgrade to either a walbro, or a 300zx pump later on.. but for keeping the engine at idle, the KA pump would be fine.

The engine starts, and dies after 3 seconds no matter what. I told him the ecu is either not detecting the cas and stops grounding the injectors, or either something else.. BUT NOT THE FUEL PUMP. The fuel pump is fine and you can feel gas going through the return line. But NOO he thinks just because it's a 6cyc instead of 4, it can't even idle without going and getting a Walbro...

so my question is, will a rb20det idle off a ka fuel pump for more than 3 seconds.. I told him that the fuel pump doesn't come into play until he gets into some higher rpms.. NOT idling.

07-27-2014, 01:58 PM	#1
Lej Join Date: Nov 2013 Location: SC Age: 45 Posts: 34 Trader Rating: (0) Feedback Score: 0 reviews	My friend is being a huge idiot when it comes to his fuel pump... So we put a rb20det into a s13 the other night, and we still have the stock KA fuel pump. I told him he needs to upgrade to either a walbro, or a 300zx pump later on.. but for keeping the engine at idle, the KA pump would be fine. The engine starts, and dies after 3 seconds no matter what. I told him the ecu is either not detecting the cas and stops grounding the injectors, or either something else.. BUT NOT THE FUEL PUMP. The fuel pump is fine and you can feel gas going through the return line. But NOO he thinks just because it's a 6cyc instead of 4, it can't even idle without going and getting a Walbro... so my question is, will a rb20det idle off a ka fuel pump for more than 3 seconds.. I told him that the fuel pump doesn't come into play until he gets into some higher rpms.. NOT idling.