chugging with code list

[Firechicken90]

I fresh on DSM's I have a 90GST 100k on it stock. The car doesn't not seem to want to accelerate and chugs like crazy and runs rich as can be, I don't have a boost gauge except for stock and when this issue occurs the gauge wants to read thats its on boost all of the time," once in awhile the gauge will read normal and the car runs great"? I have done boost leak test,fresh plugs, wires, fuel filter, also I eliminated all the emissions ie. EGR and blocked off, carbon canister, purge, vent, and all hoses related but I left the fuel silonoid. I never had a (CEL) til last weekend I reset the computer last night and then drove the car after that I pulled codes and ended up with a (13) Intake air temp, (14) TPS, (21) Coolant temp sensor, (25) BARO the wiring on this car is unmolested?

Does anyone have any advice or ideas to what is causing my problems?

Thanks,

 

[eagle_talon90]

You said it doesn't want to accelerate. When you give it gas in neutral does it rev up slowly or does it rev up normally? If it revs up slow then your timing could have jumped a tooth maybe.

 

[hydrastas]

always check timing first off imo, i checked everything i could involving hoses tb carbon buildup pcv egr etc and two weeks of troubleshooting later the timing was way off, mechanic mustof been in a rush or something but it was from human error for sure.

 

[r1991_4g63t]

it is possible for timing to jump depend on how its driven, not always human error

 

[Firechicken90]

You said it doesn't want to accelerate. When you give it gas in neutral does it rev up slowly or does it rev up normally? If it revs up slow then your timing could have jumped a tooth maybe.

Sometimes it revs slow due to being rich and then revs quickly after cleaning it out, then times it won't go over 3500rpm's. I have not checked the timing, but just today I drove the car and it ran perfect down the road for about 4mi. then fell on its face and started back to as previously described? The odd thing is all things that would cause rich running I have codes for all at one time?

 

[Firechicken90]

I am just updating results on my problems posted, I found it to be a bad ECU ordered a rebuilt one from Motoguy's Garage eBay Store - Rebuilt Repair New ECU ECM PCM Engine Control Unit Module: $330 shipped car runs great.
Thanks,