My 90 Laser RS, details posted under "running rough"

Finally got it datalogged and here is what came up...

* Air Flow Sensor
* Air Temp. Sensor
* Barametric Temp. Sensor
* Injector Circuit??

I was told by the kid who datalogged it that the first three are all a part of the MAS, he wasn't sure about the Injector Circuit.
We've changed the MAS 3 times with different ones, can't seem to figure out the problem.

Anyone have any ideas???

Sounds like some bad wiring possibly or the ECU may be bad. The caps in the ECU tend to leak and cause all kinds of damage. The first 3 are all in the MAS. Clean the connections and check the continuity between the end of the MAS plug and the ECU plug to make sure a wire isn't broken.

ohkay, the first 3 is located in the maf sensor. check/replace with a known working one.

the injector circuit is the wire that plugs into your injectors. should be 4 for them to each injectors. check for loose/broken/cracked wires.

you can check your ecu too. replace with a known working one to see if the cel clears your first 3 cel.

goodluck.
later.



edit, i meant there are 4 plugs to each injector.

There are only 2 wires per injector.

Alright...
We've checked the MAS and the Injector Circuit and all seems good. I am really confused because we can't seem to figure it out. I'm trying to get a hold of a logger again but not have much luck with that either. Any suggestions of where I can look to figure it out, or someone I can talk to.
Thanks

I'll second this.Check the grounds also, specifically the MAS ground.Bad grounds can cause all sorts of weird problems.