lost

[allenscott292002]

Hey all, i need some advice, my car is a 2000 gtp and its been cutting out losing power & when i floor it the boost only goes ab halfway up. the check engine light is on the codes are p0135 & p0102 & p0443 . here is what i've already done 1.changed plugs 2.changed plug wires 3.clean maf sensor 4.replaced maf sensor 5. cleaned ics.6. replaced air filter 7. replaced idler pulley . 8'new sc belt n checked all the fuses. It seems to improve for a little while than gets worse again. i dont want to keep replacing parts if i dont need them. any suggestions or ideas would be greatly appreciated.:th_scratchhead:

 

[whitcomb]

P0102 Mass or Volume Air Flow Circuit Low Input
P0135 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P0443 Evaporative Emission Control System Purge Control Valve Circuit Malfunction

here are the codes, i dont have too much advice on what to do to fix it, did u clear the codes after you changed the maf? clear them all and see if they come back.. the evap could be the gas cap or something, do u put gas in your car when its running, ive heard that can cause that to show up...

 

[Zef_66]

My first thought is a clogged cat. But that is just a guess...

 

[BigG]

do yu have a scanner? i'd check the MAF output, it could cause the o2 code. make sure the air intake is clear, all the way up to the TB screen.

 

[TDCRacing]

P0443 Evaporative Emission Control System Purge Control Valve Circuit Malfunction

Sounds like a bad part to me.Check all vacume hoses real carefull.Mine came on one day and all it was is that a vacume hose started to slip off.


as for the p0135 check the wires and make sure none of them are damaged.bank one sensor 1 is the 02 sensor that is in the rear header.

 

[TDCRacing]

My first thought is a clogged cat. But that is just a guess...

Clogged cat wouldnt cause any of those codes i dont belive...could cause a lot of other performance issues though.