Bogging, Hesistation..?

[NoSHOAllGo]

I have been noticing this for awhile now. I did a diagnostic test in auto shop class today and I passed. Didnt pull 1 code. Surprisengly.

Anywho, from a stop, around 1500-4000 rpms it boggs down and hesistates. It also occurs when I downshift and accelerate through a corner.It will hesistate, bogg, shake, and I cant accelerate anywhere for a few seconds.

Im thinking the fuel filter? Clogged cats? TPS?....

 

[white93atx]

Sounds like MAF sensor.

 

[NoSHOAllGo]

I dont know about that. I dont think that would cause this problem.

Because if it were that, then throughout my RPMs it would be doing the same thing.

Im thinking its fuel delivery, or electrical in the wires or plugs.

 

['94SHO]

Your MAF can/will fail in many ways, each one giving symptoms that seem like
something else... They don't always throw codes, either.. A bad MAF can act like a bad DIS, bad coil, bad cats, bad wires, it can affect it from idle to
redline.. Try switching yours with a known good one, and eliminate it from
your trouble shooting.. Good luck. Change your fuel filter lately? check you fuel press.?
Should be around 32 psi. at idle, 40-ish at W.O.T.

 

[Ishodu]

Its likely plugs wires or oil in the plug wells this would mean that you need to change plugs and wires and plug well seals. How old are the plugs and wires and have you checked in the plug wells for oil?

 

[revhardSHO]

Yes, what ishodu said. Plugs/wires most likely.

 

[ohfosho]

did you just do key on engine off test? try the full test. including cylinder balance. it takes like 1 extra min.

i was gonna say egr problem... could still be a part, but most likely a good general tune up would help. when was the last time plugs, wires, throttle body cleaning, intake cleaning etc... was done?


offtopic: hahahaha i just saw the signature pic above and thought to myself, is he pushing his SHO down a hill????

 

[hawkeye18]

My primary suspects would be: MAF, Fuel pump (low circuit), spark plugs/wires, DIS, and grounds, in that order. ...well, I might swap the pump and the wires in that list, but basically yeah. A clogged filter will cause more problems up high than it will down low.

Ooh, just remembered, a bad TPS can cause this problem as well.