bogging and sputtering please help !

[kriscameron]

ive searched the forum and tried everything i can find.
i have checked for boost leak
the isc tested good
the tps tested good
ive changed the cas with another one from a running car
new knock sensor
new fuel filter
new plugs and wires (twice on the plugs)
whats really strange is sometimes it just starts running fine and pulls really well then 10 minutes later it starts bogging again and when it bogs the boost guage goes up to like 12 and it just bogs down and spits and sputters

please help

 

[92awddsm]

ive searched the forum and tried everything i can find.
i have checked for boost leak
the isc tested good
the tps tested good
ive changed the cas with another one from a running car
new knock sensor
new fuel filter
new plugs and wires (twice on the plugs)
whats really strange is sometimes it just starts running fine and pulls really well then 10 minutes later it starts bogging again and when it bogs the boost guage goes up to like 12 and it just bogs down and spits and sputters

please help

Pull the ecu and check for leaking capacitors and/or board damage.

 

[kriscameron]

sorry to for this stupid question but this is my first dsm

where is the ecu on this car ??? 91 eagle talon

 

[ROOKIE1]

Under radio . . http://www.tmo.com/howto/ecu1g/caps.htm

 

[92awddsm]

sorry to for this stupid question but this is my first dsm

where is the ecu on this car ??? 91 eagle talon

It is in the console behind the radio. Here, look at this and it will tell you.

 

[kriscameron]

i dont see any leaking or damage
any other ideas

im looking for a way to test the fuel pressure and test the maf sensor if anyone has links to this info please post it

 

[ROOKIE1]

Do you or a friend have a logger . That would show you error codes . You do not always get a cel when there is a problem .

 

[kriscameron]

no i dont have a logger

 

[kriscameron]

i still have nor resolved this issue. today i replaced thr throttle body with a working ics and tps. changed plugs and put in a new o2 sensor. still same problem. is there any way to actuallt test the maf????????

 

[Kloopofadown]

Is your tps adjusted correctly?

http://www.plymouthlaser.com/tps.htm

 

[RSTurboFWD90]

i dont see any leaking or damage
any other ideas

im looking for a way to test the fuel pressure and test the maf sensor if anyone has links to this info please post it

To test fuel pressure you will need to tap into the supply line. There is a hard to find dealer tool that can be used but Haynes manual shows how to fab one that fits the banjo fitting on the fuel filter outlet. You should also test the fuel pressure regulator.

 

[kriscameron]

ok this mornig i pulled out the new plugs and o2 sensor all were covered in thick carbon. i guess this means i m running rich right??

i also noticed that when i unplug the maf it runs better it stull studders a bit but will rev bast 3k