91 Toyota Cylinder stuttering
#1
91 Toyota Cylinder stuttering
Have a Toyota 1991 pickup. Studering on the take off. Plugs, wires, exhaust, fuel pump, battery, fuel filter, altinator. Have all been replaced. Help?
#3
Hi dx- what is your setup?
auto/manual & 4cyl/6cyl?
Any details what kind of stutter? As in, feels like it cuts out?
Could easily be TPS. Any other accompanying issues?
auto/manual & 4cyl/6cyl?
Any details what kind of stutter? As in, feels like it cuts out?
Could easily be TPS. Any other accompanying issues?
#5
Does it only happen when changing gears or can you reproduce it at low rpms staying in gear?
Have you checked grounds?
https://www.yotatech.com/forums/f116...-guide-194413/
I would say try these things first:
• Test AFM and check for free play in the flapper, if there is any notch feeling or sludgy resistance it needs to be cleaned or replaced.
• Try unplugging vac line from the fuel pressure regulator and cap the vac line so it doesn't cause a vacuum leak into the manifold. I am thinking perhaps your fuel pressure regulator is getting stuck.
• Last time injectors were serviced?
Have you checked grounds?
https://www.yotatech.com/forums/f116...-guide-194413/
I would say try these things first:
• Test AFM and check for free play in the flapper, if there is any notch feeling or sludgy resistance it needs to be cleaned or replaced.
• Try unplugging vac line from the fuel pressure regulator and cap the vac line so it doesn't cause a vacuum leak into the manifold. I am thinking perhaps your fuel pressure regulator is getting stuck.
• Last time injectors were serviced?
#6
Oh yeah, and make sure the harness connector to the alternator is clean along with all the grounds.
Do you have a voltmeter on your dash cluster? Does it drop significantly when this problem occurs?
Do you have a voltmeter on your dash cluster? Does it drop significantly when this problem occurs?
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#9
Does it only happen when changing gears or can you reproduce it at low rpms staying in gear?
Have you checked grounds?
https://www.yotatech.com/forums/f116...-guide-194413/
I would say try these things first:
• Test AFM and check for free play in the flapper, if there is any notch feeling or sludgy resistance it needs to be cleaned or replaced.
• Try unplugging vac line from the fuel pressure regulator and cap the vac line so it doesn't cause a vacuum leak into the manifold. I am thinking perhaps your fuel pressure regulator is getting stuck.
• Last time injectors were serviced?
Have you checked grounds?
https://www.yotatech.com/forums/f116...-guide-194413/
I would say try these things first:
• Test AFM and check for free play in the flapper, if there is any notch feeling or sludgy resistance it needs to be cleaned or replaced.
• Try unplugging vac line from the fuel pressure regulator and cap the vac line so it doesn't cause a vacuum leak into the manifold. I am thinking perhaps your fuel pressure regulator is getting stuck.
• Last time injectors were serviced?
#10
There are good things that come of this though: the obvious one is getting things working properly, and secondarily learning what made it work and taking that nugget with you forever. Kind of a win-win. You have to love these vehicles for their approachability and simplicity when it comes to that stuff.
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