I have a 1994 olds cutlass supreme 3.4 dohc. I have a master mechanic stumped on what is wrong with it. It revs up and down while in idle until it finally dies. Ive had ALOT of work done to it by process of elimination (i.e. Mass Air Flow Sensor, Throttle position sensor, EGR, Altenator, Battery, Starter, Checked for any vaccuum leaks, basically the car has been a money pitt!) So anyway, Im tired of keeping the brakes and gas on while at a stop light, I go through alot of brake pads. Is it possible that the ems needs to be replaced?

SOURCE: 1995 cutlass supreme transmission

It physically will fit and bolt up,but there are many different ratio,and drive and driven sprocket tooth counts,different final drive ratios,all monitored by the computer with electronic speed sensors.If the trans from the 95 has a different ratio than the 93,the computer will set gear ratio error codes,and possibly put the trans in a failsafe mode,stuck in 2nd or 3rd gear.On the transmission case,down by where the passenger side axle would go in,is a thin metallic tag,maybe 2"x 3",and it has bar codes,and also a series of numbers and letters.The numbers and letters,large cap,are the final drive gear ratio code.They should match on the two transmissions in question.

SOURCE: fuel pump for 1995 olds cutlass supreme

No you will have to drop tank to access fuel pump.

SOURCE: Torque Settings for 3.4L DOHC Intake Manifold and Plenum

10 ft lbs.

Greg Bernett

• 2993 Answers
• Posted on Mar 25, 2009

SOURCE: firing order

Here ya go!

SOURCE: high rpms in park, too low in drive

sounds like ecm sensor problems.does check engine light come on at all?you may be able to get a code reader at autozone to retrieve computer stored codes, this would more than likely lead you in the right direction.some shops will do a computer check cheap if you are unable to perform this task.however the code readers come with instructions and are user friendly;-)