Question about 1994 Oldsmobile Cutlass Ciera
For about a year now, I have been working on a problem with my 1994 Oldsmobile Cutlass Ceira 3.1L, Once every 2 weeks the car is very hard to start, so much so that I had burnt out 3 starters and 1 Alternator. After I get the car running it sounds rough until it warms up, then the car runs great for the next 2 weeks as if there is nothing wrong with it, I have taken it to 4 places 1 of which is the dealership for Oldsmobile, none of them can find anything wrong with it. Items that have been replaced, 1 ea engine, put in a Jasper Engine, other one quit working, starter, Alternator, battery, ground battery cable, starter relay, radiator, water pump, air intake hose, thermostat, temperature sensor, EGR, Computer, turn signal switch, window motors both side front, mirror, it has been serviced recently, as I have a lot of money in this I do not want to give it up. I feel the problem started when the engine was replaced, the place that replaced the engine said they had a hard time starting it which is why they replaced the computer it does have the original prom in it. I am now trying to figure this out now since no one else has been able to figure it out. What I have notice is that once I get the vehicle running like it should there is nothing wrong with it for 2 weeks, then I have to go through high waters to get it started, I have thought of the MAF but it also checks out good. What I like to know is what is everything that is needed to start the vehicle but is not used while the vehicle is running?
This sounds like a ignition control module they are inremittent problems that are difficult to diagnose, I am surprised tha tno code has been stored however, before spending more money try this when the car acts up pull ou a plug and see if the spark is week or not present at all hopefully you will have an assistant present to turn ove rthe car when it happens this is going to eliminate the ignition system as the cause, move on to the fuel pressure, on some cars there is a cold start sensor that causes the fuel injectors to stay open longer upon start up.
Posted on Jul 15, 2009
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Posted on Jan 02, 2017
Then programmable read only memory (PROM) chip that you are asking about is located inside the electronic control module.
This module is located just above the glove compartment in the dash area.
Removal of the glove compartment is required to remove this module. After removing the ECM you will note a small access cover. Remove this cover and you are at the PROM.
Good luck, it is quite easy.
Posted on Mar 10, 2010
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