240sx stalls as soon as you cover tailpipe

[bdm665]

I have 1989 Nissan 240sx and has high HCs and it wont pass emissions.The car hesitates and bucks when accellerating and seems to bog down. Discovered that as soon as you cover the exhaust the engine stalls. I seperated the exhaust in front of the cat converter but does same thing. Timing is very close to specs. Any suggestions?

[Uncivil240]

Clog in the fuel line/system/bad injectors/dirty fuel filter or connections or some type of restriction in the air flow. Run some seafoam in the fuel system to see if that will help it out any. I had the same issue and after going through everything and checking everything one of my injectors were bad.

[!Zar!]

Are you kidding me?

Of course the car is going to shut off if you plug the exhaust while it is running.

Where do you expect the exhaust gasses to go?

[Vernal]

check the mafs

[s14unimog]

Are you kidding me?
Of course the car is going to shut off if you plug the exhaust while it is running.
Where do you expect the exhaust gasses to go?

X2, that's always going to happen.

[camaro379ss]

wow...really???

[dontxploitme]

i got a suggestion...

don't cover the exhaust! why would anybody do that? that's retarded.

[camaro379ss]

Exactly what I was thinking but I didnt want to be the one to say it.

[bladetech8]

lol.. The ol' potato in your tail-pipe shenanigan.