Hey guys. Lately when I give my '90 gas it's like it dies down real low then revs. As if it's choking/flooding the engine. Anyone know what this could be?

 

Mine needed a tune up. Did plugs wires cap rotor and it ran great.

 

Possibly a bad/out of adjustment TPS.

 

Probably, ive had nothing but problems with this pos Tps.

I did a tune up and that didn't work.

 

New TPS if it's not adjusting properly. Or o2 sensors. Often associated with hesitations. Are you backfiring from manifold?

 

All good suggestions above.

Also verify fuel pressure at the fuel rail. There is always a possibility that it is a fuel delivery problem. Have you ran any injector cleaner lately?

 

o2 sensors.

 

No I haven't had Any backfiring yet, I didn't think about o2 sensors.

I've never replaced the o2 so I'll give that a chance and see

 

It's got pressure. I haven't ran cleaner thru it for a while now, I'll do that
Thanks

 

The backfiring was in regards to a possible fuel delivery issue. But that doesn't sound like its the case.
Always good to disco the break booster vac line and slowly poor 1/3 of a can in. The other 2/3 is usually divide into gas and crankcase (per instructions).