Brothers LS1 ******?
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From: Lockney, Texas
Brothers LS1 ******?
Copied and pasted post from LS1 tech...
Problems after MS4 install. Ran great until we went to tune it. Ran perfect for about 5 min after tune.
Post #1
we are having the same trouble. We did have a serious leak near an O2, fixed but driver side bank still dumping an *** load of fuel. Funny thing is that on one start up passenger side was dumping a lot of fuel. Also noticed the driver side o2 (which was new) was not reading like it should at idle. Rev the car up a bit and it will start reading. Also upon 1st connecting to car noticed a Crank position sensor code. Cleared it and has not come back since. So car runs rich has a definite miss on 3 or more cylinders. Temp read on each header pipe from front to rear Driver: 340, 350, 140, 150. Passenger: 360, 140, 340 350. We have spark changed injectors still same thing. Sometimes car will load up and abruptly shut off like it want to hydro lock and will let a big plume of smoke out from engine bay. most coming out from airlid.
Post #2
Update fixed exhaust leak(s) new Crank sensor, new wires and connector to sensor, new plugs, new wires, new stock injectors. When we left the shop yesterday tuner said he put where it will not add fuel. After all this it runs worse and now there is white smoke coming from the tail pipes. Could it be because it needs more fuel and is not getting any? We and stumped and money is depleting fast, any suggestions..
List of new parts after tune
plugs
wires
o2 sensor
offroad y
Crank Position Sensor
Connector (pigtail) to crank position sensor.
27# injectors
Sputters
white smoke from tail pipe
miss
no knock
Maybe washed out cylinder, bad spring I will check thos next if no one chimes in. Right now I am headed back to the tuner
Problems after MS4 install. Ran great until we went to tune it. Ran perfect for about 5 min after tune.
Post #1
we are having the same trouble. We did have a serious leak near an O2, fixed but driver side bank still dumping an *** load of fuel. Funny thing is that on one start up passenger side was dumping a lot of fuel. Also noticed the driver side o2 (which was new) was not reading like it should at idle. Rev the car up a bit and it will start reading. Also upon 1st connecting to car noticed a Crank position sensor code. Cleared it and has not come back since. So car runs rich has a definite miss on 3 or more cylinders. Temp read on each header pipe from front to rear Driver: 340, 350, 140, 150. Passenger: 360, 140, 340 350. We have spark changed injectors still same thing. Sometimes car will load up and abruptly shut off like it want to hydro lock and will let a big plume of smoke out from engine bay. most coming out from airlid.
Post #2
Update fixed exhaust leak(s) new Crank sensor, new wires and connector to sensor, new plugs, new wires, new stock injectors. When we left the shop yesterday tuner said he put where it will not add fuel. After all this it runs worse and now there is white smoke coming from the tail pipes. Could it be because it needs more fuel and is not getting any? We and stumped and money is depleting fast, any suggestions..
List of new parts after tune
plugs
wires
o2 sensor
offroad y
Crank Position Sensor
Connector (pigtail) to crank position sensor.
27# injectors
Sputters
white smoke from tail pipe
miss
no knock
Maybe washed out cylinder, bad spring I will check thos next if no one chimes in. Right now I am headed back to the tuner
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