Bogging after 4K

[QuadCam]

I'm experiencing bogging over 4k. I can't give the car full throttle otherwise it bogs out. The only time the car doesn't bog is 4K and below. Is my car running too rich?

 

[Redline]

Sounds like it could be. Try cleaning your MAF (mass airflow sensor). I couldn't give mine more than half throttle without it bogging when I first bought it. I pulled the MAF apart and cleaned the little wires with electrical cleaner and it totally fixed my problem.

 

[QuadCam]

Yeah, i just replaced my airbox with the SHO Shop fenderwall, you guys think its the K&N that they gave to me?

 

[MelectroK]

Butterfly's Own you

 

[masho95]

As the last enigmatic post suggested, check to see if the secondary butterflies are opening correctly when the car hits 4K RPMS. Performing a search along those lines will probably give you all the info you need.

 

[QuadCam]

The butterflies open fine. But, only when i give it less than 50% throttle

 

[Jayman]

I'm have been experiencing the exact same problem with my 93. Have you pulled your codes yet?

 

[jbeano]

Mine had the same problem. Drove around with a fuel pressure guage hooked up and sure enough my brand new 190 LPH pump was falling flat on it's face at around 4k rpms.

 

[QuadCam]

I haven't pulled any codes yet but i go in tommorow, now the car just dies if i leave it in idle for too long. Any ideas?

 

[jelloslug]

TPS sensor could be going bad.

 

[Jayman]

After checking my codes (214) I replaced the cam sensor but still had bogging issues. I just cleaned out the MAF very gently and the car performs like new. Absolutely no concerns right up to redline. Try it - it's quick easy and should be done anyway.