Gutling
08-13-2006, 09:05 AM
Okay need help lol. A lot of backstory so please bear with me. redtop SR20DET in 89 240sx. Just got out of local performance shop. Engine rebuilt, all oem nissan bearings/rings/seals/etc. Brand new head. New timing chain, tensioner, water pump, timing chain cover.
Peak Performance Gold Valve Springs
APEX .8mm headgasket
HKS Step 1 264 intake/exhaust camshafts
Greddy Rocker Arm Stoppers
Nismo thermostat
Pro-Fab Intake Manifold Gasket
SARD 550cc Injectors
ARP Rod bolts
ARP headstud kit
Walboro 255lph
NISMO FPR
Garrett GT25R .64
Z32 MAFS
FMIC
3" intake/exhaust
Greddy Profec Type - S
Greddy Turbo Timer
Enthalpy Tuned ECU (Z32, 550cc)
Just got the chips two days ago (old ones were corrupted) Car starts, runs extremely rich (wideband showed idle 10:1 a/f) will idle rough when cold, once warmed up will not idle. The minute you take your foot off the gas, shuts off. Car runs real boggy/bucky lower rpms, once it clears the gas out higher rpms runs good.
Planning on going to florida sometime soon and meeting scott there and having them dyno/examine/fix car if it is the tune. Just doing this to see if there is a possiblitly of it being ANYTHING else.
Also, while car was in shop, removed ecu and hooked up aem ems and car ran perfect. Good idle.
Things I have checked
O-rings, not leaky.
Boost leaks - none.
CTS - Brand new
MAFS - Good
TPS - Good
Spark Plugs/coil packs - Good
All wiring on car was checked over, some redone (some wires were butt connected 2 or three times from the half-assed motor swap done before I got the car. All of it is single wires, shielded)
Everything else on the car is perfect.
At its rough idle stays around 1k, shows a vac of ~10-12.
Fuel pressure is dead on, have a defi gauge inside. Increases 1:1 for boost. Idle ~40psi
Please please help. I can barely drive the car, shuts off whenever I cant hit the gas. Its going to be expensive for me to get it down to florida (dont want to drive it, got to get a friend to help get a trailer to take it down there. Plus about 7-8hrs away.) Is there anything else it could be besides the tune? PS Ecu is good, was checked out at enthalpy while car was in shop.
Peak Performance Gold Valve Springs
APEX .8mm headgasket
HKS Step 1 264 intake/exhaust camshafts
Greddy Rocker Arm Stoppers
Nismo thermostat
Pro-Fab Intake Manifold Gasket
SARD 550cc Injectors
ARP Rod bolts
ARP headstud kit
Walboro 255lph
NISMO FPR
Garrett GT25R .64
Z32 MAFS
FMIC
3" intake/exhaust
Greddy Profec Type - S
Greddy Turbo Timer
Enthalpy Tuned ECU (Z32, 550cc)
Just got the chips two days ago (old ones were corrupted) Car starts, runs extremely rich (wideband showed idle 10:1 a/f) will idle rough when cold, once warmed up will not idle. The minute you take your foot off the gas, shuts off. Car runs real boggy/bucky lower rpms, once it clears the gas out higher rpms runs good.
Planning on going to florida sometime soon and meeting scott there and having them dyno/examine/fix car if it is the tune. Just doing this to see if there is a possiblitly of it being ANYTHING else.
Also, while car was in shop, removed ecu and hooked up aem ems and car ran perfect. Good idle.
Things I have checked
O-rings, not leaky.
Boost leaks - none.
CTS - Brand new
MAFS - Good
TPS - Good
Spark Plugs/coil packs - Good
All wiring on car was checked over, some redone (some wires were butt connected 2 or three times from the half-assed motor swap done before I got the car. All of it is single wires, shielded)
Everything else on the car is perfect.
At its rough idle stays around 1k, shows a vac of ~10-12.
Fuel pressure is dead on, have a defi gauge inside. Increases 1:1 for boost. Idle ~40psi
Please please help. I can barely drive the car, shuts off whenever I cant hit the gas. Its going to be expensive for me to get it down to florida (dont want to drive it, got to get a friend to help get a trailer to take it down there. Plus about 7-8hrs away.) Is there anything else it could be besides the tune? PS Ecu is good, was checked out at enthalpy while car was in shop.