What could this be? ('92 Delta 88 LSS)

[JesTTR]

Our car has been acting up lately. It drives smooth for a while but then it starts driving real rough. Basically it kind of feels like it's sputtering or something. It's jerky and the RPMs bounce like crazy. Then the check engine light comes on. You turn the car off....it sits for awhile and you start the car again and the check engine light isn't on anymore. It drives fine for a bit and starts acting up again.

Has anyone had any experience with this or know what it could be??

We had a modulator thing replaced a couple years ago. I *thought* they called it an ignition modulator, but now I'm thinking it was called something else and I just heard them wrong (i do know for a fact that modulator was in the name of it though). When that went, the car acted differently than what it is now.

[maxwedge]

Originally Posted by JesTTR

Our car has been acting up lately. It drives smooth for a while but then it starts driving real rough. Basically it kind of feels like it's sputtering or something. It's jerky and the RPMs bounce like crazy. Then the check engine light comes on. You turn the car off....it sits for awhile and you start the car again and the check engine light isn't on anymore. It drives fine for a bit and starts acting up again.

Has anyone had any experience with this or know what it could be??

We had a modulator thing replaced a couple years ago. I *thought* they called it an ignition modulator, but now I'm thinking it was called something else and I just heard them wrong (i do know for a fact that modulator was in the name of it though). When that went, the car acted differently than what it is now.

Try and get the code read should be in history, post back results.

[acidcrashdburnd]

if you have an auto zone around you they will pull the codes for you and give you a print out and the SES light doesnt have to be on at the time
but to me it sounds like the mass airflow sensor is going to crap.

[JesTTR]

Thanks for the responses...sorry I have not responded since the orginal post. Was waiting until my friend could use his code tester on it. Tried to do that last night and his reader is too new for the car go figure. lol I need to try Auto Zone. It actually hasn't acted up since Saturday. Could the fuel injector cleaner helped?

[maxwedge]

Autozone cannot scan a pre 95 car or obd1. Jumping pins a and b will allow to get flash codes but a scanner will give you live info.