just fixed car stutters when i try to take off but switchs gears perfectly

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michael_grigoras
Posts: 151
Joined: Mon Jul 13, 2009 7:48 am
Car: 1991 nissan 240sx
1987 bmw 320i
1983 toyota starlet
1977 mercedes 240d
Location: portland OR

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alright so i just replaced the chain guides chain timing cover and crankshaft also replaced o2 sensor all 4 fuel injectors the wire harness to the fuel injectors the air flow meter the spindle to the oil pump the radiator and i adjusted the spark gaps but after about 5 minutes of driving the car and i get to a red light when i push the accelerator it stutteers and dies on me but when i get it going and speed up it switchs gears easy and picks up speed so idk if its either the fuel pump a faulty wire on the harness or one of the injectors are bad idk and and suggestions will be greatly aopreciated


rsagen
Posts: 237
Joined: Wed Jun 10, 2009 7:54 pm
Car: 1989 240SX Coupe 5sp SOLD
1989 240SX Hatch auto SOLD
1990 240SX Coupe auto WRECKED
1990 240SX Hatch auto
1990 Jetta Turbodiesel 5sp FEILD BAGGED
1997 Jimmy 4WD
1985 Chev Wrangler
1994 F150 4X4

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michael_grigoras wrote:alright so i just replaced the chain guides chain timing cover and crankshaft also replaced o2 sensor all 4 fuel injectors the wire harness to the fuel injectors the air flow meter the spindle to the oil pump the radiator and i adjusted the spark gaps but after about 5 minutes of driving the car and i get to a red light when i push the accelerator it stutteers and dies on me but when i get it going and speed up it switchs gears easy and picks up speed so idk if its either the fuel pump a faulty wire on the harness or one of the injectors are bad idk and and suggestions will be greatly aopreciated
I would recheck the wires, make sure the ground is on sercure, and check your distruber, and spark plug wires.

also check to make sure you are getting over 7 amps on your fuel pump. (normal is about 12 or so but I could be wrong)

User avatar
michael_grigoras
Posts: 151
Joined: Mon Jul 13, 2009 7:48 am
Car: 1991 nissan 240sx
1987 bmw 320i
1983 toyota starlet
1977 mercedes 240d
Location: portland OR

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so i just checked the distributer and it checks out so do the wires but im not so sure the wire harness is working correctly would the fuel pump be located in the gas tank or outside on this model?

rsagen
Posts: 237
Joined: Wed Jun 10, 2009 7:54 pm
Car: 1989 240SX Coupe 5sp SOLD
1989 240SX Hatch auto SOLD
1990 240SX Coupe auto WRECKED
1990 240SX Hatch auto
1990 Jetta Turbodiesel 5sp FEILD BAGGED
1997 Jimmy 4WD
1985 Chev Wrangler
1994 F150 4X4

Post

the fuel pump is inside of the gas tank. Remove the carpet in the trunk or hatch and there is a square access panel. remove the four bolts holding it down to expose your fuel sending unit. If your fuel pump isn't working i suggest replacing the sending unit as well. four bolts hold the sending unit in place unclip the wiring harness and unbolt the four bolts and the fuel pump is the cylinder that clips into the bottom of the sending unit.
michael_grigoras wrote:so i just checked the distributer and it checks out so do the wires but im not so sure the wire harness is working correctly would the fuel pump be located in the gas tank or outside on this model?


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