need help! bad idle after turbo install - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

niSm095 · 09-23-2007, 09:50 PM

Over the course of the past month, when I've had times in the evenings and on weekends, I've been upgrading my SR. I added a GT2871R, new hotpipe, downpipe and elbow, stainless lines, 740cc injectors, new plugs, z32 maf and got an enthalpy tune.

It finally ran today. I drove it around the neighborhood and it's a monster. But.....it doesn't idle worth a damn. We cranked it the first time and it ran fine for about 3 minutes, then I began losing vacuum, and the car died. So...we checked for leaks and fired it up again, it look longer to turn over and idled very rough. We tried and tried, checked and rechecked, the finally let it sit and cool down. I came back to it a few hours later and it started right back up and ran fine for longer...about 5 minutes, then idled roughly but never cut off like it had before; it sputtered and then caught itself, and regained vacuum pressure.

It continued to do this, even when i drove it around a little, cutting off occasionally when I would let off the gas. Anyone have any ideas what this may be? Nothing's leaking that we can tell...

09-23-2007, 09:50 PM	#1
niSm095 Zilvia FREAK! Join Date: Mar 2003 Location: S. Carolina Age: 39 Posts: 1,201 Trader Rating: (14) Feedback Score: 14 reviews	need help! bad idle after turbo install Over the course of the past month, when I've had times in the evenings and on weekends, I've been upgrading my SR. I added a GT2871R, new hotpipe, downpipe and elbow, stainless lines, 740cc injectors, new plugs, z32 maf and got an enthalpy tune. It finally ran today. I drove it around the neighborhood and it's a monster. But.....it doesn't idle worth a damn. We cranked it the first time and it ran fine for about 3 minutes, then I began losing vacuum, and the car died. So...we checked for leaks and fired it up again, it look longer to turn over and idled very rough. We tried and tried, checked and rechecked, the finally let it sit and cool down. I came back to it a few hours later and it started right back up and ran fine for longer...about 5 minutes, then idled roughly but never cut off like it had before; it sputtered and then caught itself, and regained vacuum pressure. It continued to do this, even when i drove it around a little, cutting off occasionally when I would let off the gas. Anyone have any ideas what this may be? Nothing's leaking that we can tell...