Bog

[SHODano]

My 93 Sho has a bog when you have it at about 3/4 throttle, replaced plugs wires, and y-pipe.

 

[BeatDaSHO]

well ur description isn't too detailed but i'm thinking maybe the O2 sensors. Did you replace these when you replaced the y-pipe? Is there any oil in your plugs wells. Check that.

Greg

 

[Denny]

Would O2 sensors cause the car to bog?

 

[projectSHO89]

Probably not.

Test your TPS.

Steve
89

 

[fredhurderjr]

Dan's 93 has a noticeable bog on >2/3 throttle. It felt like a plugged cat (from previous non-SHO experience). At idle through half throttle, the car feels great. At WOT, it won't get out of it's own way. Secondaries are working fine.

He's got a new-to-him used stock Y-Pipe on the car, as well as 2 new O2's on there. The next thing I was going to look at was the TPS, then the MAF. About the only other thing I can think of is possibly clogged injectors or possibly a failing pump or fuel pressure regulator. Pump isn't screaming though.

We recently put a very nice powdercoated intake & cam covers on for him. He's got new gaskets all around & things seem pretty tight vacuum-leak wise. He says the car feels about the same as before the valve adjust, plugs & wires & intake swapout - maybe a little better.

If anybody's got suggestions, we're happy to hear them. Thanks folks!

 

[twr]

TPS

Terry