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Old 02-15-2018, 12:46 AM   #1
brandonodom18
 
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Default 1990 Nissan 2wd problems again

Hey guys my truck started missing really bad today and I donít know what it is. For a while it wouldnít crank at all then it started getting fuel I guess and it will crank but I have to keep the rims high to keep it up. Then if I let off itll run for a second but missing badly but thatís after it warms up. I tore down the fuel rail and I think I found the issue but I know itís not the pump because the pressures good. Give me some ideas of what else it might could be. Also I think I got some bad gas to
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Old 02-15-2018, 01:05 AM   #2
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Bad gas will do it. Got any vacuum leaks?
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Old 02-15-2018, 01:40 AM   #3
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Mine started bucking really bad a few years ago. It ended up being the cheapo spark plug wires had burned up at the ends and were arcing inside the spark plug boot, causing a weak spark. You might check that if you are running old and/or cheap wires. There are also a couple of connections inside the wiring harness for the rail that break down and cause it to run poorly. Here's the thread about it:

http://www.infamousnissan.com/forum/...ad.php?t=25332
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Old 02-15-2018, 10:26 AM   #4
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Old cap/rotor or plug wires.
Timing.
Old fuel filter.
Vacuum leak.
ECU Codes.

Could be any of those things.
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Old 02-15-2018, 12:11 PM   #5
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update: got it all fixed last night and it was bad gas because now after i put premium in it and a bit of heet it sputters every now and again but thats there until i run all the bad gas out.
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