Engine lacks power at part throttle
#1
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Location: Temple City, CA
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Car: 1990 Camaro RS
Engine: V8 305 TBI
Transmission: W/C T5
Axle/Gears: 3.08
Engine lacks power at part throttle
I've asked this question a couple of times, but I've never gotten an answer.
So please shoot me some input, any ideas are appreciated.
I've got a '90 RS 305 TBI, and if I shift from 1st to 2nd and resume the throttle at maybe 1/4 throttle it feels as if the car is "missing" but not in an ignition sense, I think it is a fuel issue.
This only occurs at around 1/4 throttle, if it starts doing it and I step on it, the problem immediately goes away and it pulls.
What could this be? Could the injectors be plugged a bit so at low pressure fuel injection the pods don't work as well as they do at full throttle when they're spraying at full pressure?
What I immediately thought of was a low speed circuit of a carb, it feels as if that circuit could somehow be plugged or not working as well, because this only occurs at 1/4 throttle, but I'm not sure whether a TBI has these same circuits.
I appreciate any help given.
So please shoot me some input, any ideas are appreciated.
I've got a '90 RS 305 TBI, and if I shift from 1st to 2nd and resume the throttle at maybe 1/4 throttle it feels as if the car is "missing" but not in an ignition sense, I think it is a fuel issue.
This only occurs at around 1/4 throttle, if it starts doing it and I step on it, the problem immediately goes away and it pulls.
What could this be? Could the injectors be plugged a bit so at low pressure fuel injection the pods don't work as well as they do at full throttle when they're spraying at full pressure?
What I immediately thought of was a low speed circuit of a carb, it feels as if that circuit could somehow be plugged or not working as well, because this only occurs at 1/4 throttle, but I'm not sure whether a TBI has these same circuits.
I appreciate any help given.
#2
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Car: 1991 Black Z28 G92
Engine: 350 for now
Transmission: wc t5
Axle/Gears: factory 3:42
Re: Engine lacks power at part throttle
Is the ses light on? if so is there any codes?
#3
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Car: 1982 Camaro
Engine: currently 305
Transmission: th700r4
Axle/Gears: 3.08
Re: Engine lacks power at part throttle
check the throttle position sensor, sounds to me that it could be this
#4
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Car: 1990 Camaro RS
Engine: V8 305 TBI
Transmission: W/C T5
Axle/Gears: 3.08
Re: Engine lacks power at part throttle
No codes are being thrown, it's not a severe problem. I'd just like to figure out what it is.
#5
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Car: 1990 Camaro RS
Engine: V8 305 TBI
Transmission: W/C T5
Axle/Gears: 3.08
Re: Engine lacks power at part throttle
Another possible culprit I think could be the clutch. I think the "slip point", if you will, has perhaps moved farther toward me and it now engages, rather disengages (the disc) at a different point. Could this be the hydraulic fluid in the cylinder? Maybe the free play needs adjustment?
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