Question about 1994 Oldsmobile 88

1 Answer

1994 Oldsmobile 88 Royal- Intermittent shut down and no restart. I need major help on this one!

Had a question for you, with the pass key systems used on the gm, I came across a thought and found some information about it. There have been cases where the wires that run from the controller that is behind the glove box to the key switch can break open causing a no/ intermittent start or loss of the fuel injector signal. I did check the signal, tossed the column up and down steer left to right ect, found no change at a constant 5volts. Wondering if you ever had this problem. I will go "ground hunting" and see what I come up with. Although I do have a person interested in the car and a did state there is a problem, still want it so maybe ill let it die. Although now, i really want to find out the problem. Thanks again.

Posted by on

  • Dan Kasprzak
    Dan Kasprzak Sep 05, 2008

    darn that is almost as good as bypassing the air pressure tire monitors when you upgrade to aftermarket rims! Gotta love cheating. Only question for you about the 60 hz generator, do you have part number and could you give the pins for ecm?  Speaking of gm ecms, do you find it odd that two ecms have been replaced in this car. I know they are prom system but I have to wonder if it was just a guess or if they have a known problem?I am a jack of all trades but currently an epg technician so kinda interested in how you used a signal generator to bypass the circuit. Thanks again for the help. Will be working on the car this weekend. Starting with the grounds and going from there. Dan 



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 169 Answers

Sorry so long to get back to ya..yes i have a lot of expierence in these. there several ways to fix it. 1st and hardest- thw wires that go bad are two white wires right behind the ignition lock cylinder itself. to repair it correctly you must disassemble the steering collumn and remove/replace the ignition CYLINDER with the pass key wiring attatched to it. 2nd you can bypass the cylinder if ya want to do it that way. check the resistance of the key on the pellet(black bump on the shaft), write the resistance down. go to the bottom of the steering collumn and find the two white wires wich sometimes have a third wire being a gound loop/shield. find the two wires in question by inserting the key into the ign. and matching the resistance of the key on two of these wires. should be the outside wires if a three wire set up.
cut the wires once you have found the wires for sure. go to radioshack and get an assortment of resistors. you need to match the resistance of the key with a combination of resistors that match the key resistance. Take your time to watch the scale on the meter wether it is reading k-1000= ohms or whole ohms. solder the resistors together and solder them inline with the two wires going to the theft deturant module and wha laa youv'e bypassed the ignition. 3rd- if you want to bypass the system all together then you have to pick up a 60hz generator and wire it onto the ecm. i can get you the pin# and generator info if ya need. i am not on here everyday so give me a little time to respond. good luck- you know where to find me ..scott

Posted on Sep 05, 2008

  • SCOTT OCONNOR Sep 07, 2008

    the generator works in place of the pass key module , because thats all the module does when it is "happy" with the key resistance. i have to look for them again. i will fond the lin # too for ya.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Car key reprogramming for 1994 oldsmobile royale 88. My car will start than it will shut right back off or it will not start all.

Your 1994 used the VATS antitheft system. This key is NOT reprogrammable. You can try to reset the TDM using the ten minute trick, this may work for you. As far as the key goes, you need a new key with a new chip. Remember too that it can also be a part in the ignition that may be failing.

Here is a good link on the security antitheft system.

Feb 20, 2012 | 1994 Oldsmobile 88

1 Answer

Loking for fuse box/relays diagram for 1994 Olds 88 Royale

Fuses (located on a swing down unit near the steering column or in the glove box) protect all the major electrical systems in the car. In case of an electrical overload, the fuse melts, breaking the circuit and stopping the flow of electricity.

I suggest check your 1994-Oldsmobile-Eighty-Eight-Owners-Manual for descriptions (page 223 and next).

Hope this help..

Mar 30, 2010 | 1994 Oldsmobile 88

2 Answers

Need firing order for a 1994 88 delta royal

1994 Oldsmobile Eighty-Eight Royale FWD 3.8 liter V-6


Good luck (remember rated this help).

Nov 26, 2009 | 1994 Oldsmobile 88

1 Answer

Shuts off while driving but starts right back up also after restarting it chugs down like it has trash in the line and idles realruff for about 30 seconds but finally smooths out and goes on for a lttle...

We had this same problem. It turned out to be the computer. We had the computer replaced and it worked great for awhile but now there's something else wrong with it. Hope this helps and good luck.

Oct 22, 2009 | 1994 Oldsmobile 88

1 Answer

How to install a half drive shaft on a 1994 oldsmobile 88 royal?

You will have to remove the U-clamp in the middle of the shaft so that the half-shaft can flex enough to be inserted into the transmission. You may have to turn the shaft so that the universal joint is flexed in the correct angle.

Hope this helps!

Sep 08, 2009 | 1994 Oldsmobile 88

1 Answer

A 1994 Oldsmobile Royal 88 has a problem on the security system

ok first off let me warn you i have had this problem before but let me verify something before i finish warning you . the lights are on all the time or are you saying they have to be on to start the car?

Ok now for the warning you may not like me very good when i tell you the info that took care of my problem like that the reason being is because it is VERY expensive and may not correct your problem it helps on some of the cars with the problem and some it dont
My car has that pass key cap with the chip made into the key that starts the car itself and has a security feauture that will stop the car from starting if that key is wet, dirty or blown up( exposed to static thus blowing the chip) therre is one big differance though i have noticed on mine it done exactly what yours is but when driving or if i try to start mine in neutral the security light came on .

ok i know you are saying omg what price am i looking at and I honestly dont know since olds went out of business but before they went out it was going to cost me 800 for the chip 100 for key and 50 service fee
Now there is an alternative however to check this out and see if it is your key or not
if you have a second key try using it to start it and see if it does the same thing; if it does then its not the key but the security mechanisim inside the sterring column which means a new sterring column and possibly a new airbag system ( usually a shop Job) this security feature is nice however its alot of pain because after 3 minutes it shuts the car down completely ( the car thinks its stolen )

Feb 08, 2009 | 1994 Oldsmobile 88

1 Answer


more then likely it is the sensor in the door that is the problem but i also would like to give you a name of a place that only sells G-M-parts and that is schram auto &truck parts they number is # 1-800-292-1032

Feb 08, 2009 | 1994 Oldsmobile 88

1 Answer

1193? Oldsmobile royal 88 Relay?

How rusty is your vehicle? Been in any collisions?

Oct 05, 2008 | 1994 Oldsmobile 88

2 Answers

1994 Oldsmobile 88 Royal- Intermittent shut down and no restart. I need major help on this one!

Well dan after 13 yrs at gm I have found a couple of these. one really got me. First I know it sounds funny but you need to pull the carpet back on the dr. and pass. side and check the ground splices as they are connected to every thing in the car from front to back. they are a black connector taped into the harness and connect all the grounds with a steel buss bar. I always cut all the wires and soldered them together and re-tape em up. this problem would sometimes come with the engine dying when trying to roll the power windows down, or intermittent window operation. Second I had one car i really lost my **** on... it would stall on the cust. on HIS dirt road for him at times. I tried a couple of sensors and a ecm as each would look bad depending on the frame the scan tool would freeze on. The only thing that fixed the car was removing all the grounds on the engine and grinding them clean, replacing all the ground ends and reassembling. That prayer i said when the guy picked might have also helped but the car never stalled again and the cust returned for his next two car purchases. this is one heck of a problem you have here-sorry. I have had to wire in lights to the grounds and powers for the injection while driving before also. remember the pink and blk. wires for the injectors is hot with the key on.
good luck..

Aug 28, 2008 | 1994 Oldsmobile 88

1 Answer

1994 oldsmobile 88 royal fuel injector

buy a haynes automotive book for your year it will tell you where and how to fix it.

Aug 04, 2008 | 1994 Oldsmobile 88

Not finding what you are looking for?
Cars & Trucks Logo

240 people viewed this question

Ask a Question

Usually answered in minutes!

Top Oldsmobile Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8826 Answers

Are you an Oldsmobile Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides