The car cranks but dont get any spark

BUDDUH

MEMBER
1988 OLDSMOBILE 88
6 CYL
FWD
AUTOMATIC
109,000 MILES

I have just put in a crank sensor in my car and it gets no spark but it will crank all day long. I drove it for about an hour turned it off to get some gas then it didnt want to start back up so I put her on a trailer and took her home. The next day it started and I drove it off the trailer. That is when I changed the crank sensor. And no it still wont start my wires and plugs are good and I have a new battary in it. I am in the need of some help please.

Saturday, April 18th, 2009 AT 8:50 AM

3 Replies

MERLIN2021

MECHANIC
17,250 POSTS

Diagnostic Aids Engine Runs Okay � � � Check for faulty light bulb. � � � Check for open in circuit No. 419. Engine Cranks, But Will Not Run � � � Check continuous battery power, check fuse or fusible link for open. � � � Check for ECM ignition fuse open. � � � Check for ignition circuit No. 439 to ECM open. � � � Check for poor connection to ECM. Fig. 6: Chart A1, Schematic Fig. 7: Chart A1, No "Service Engine Soon" Light Page 1 of 1 3.0L VIN [L] & 3.8L VIN [3&7] PFI CEC COMP TESTS -1988 Oldsmobile Delta 88 Ro... 4/18/2009 Read the codes by crossing the "A" and "B" terminals, then turn the key to "ON" and count the flashes. a 22 will flash as 2 flashes then a short pause, then 2 flashes, if more than one code is stored, the pause will be longer. The codes will display three times and end with 12. Write them down and post here. This connector is right under the middle of the dash...

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Saturday, April 18th, 2009 AT 9:02 AM

BUDDUH

MEMBER
2 POSTS

I did the code test and it came up with a oxegon sensor and a throttle body sensor could those prevent the car from starting?

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Saturday, April 18th, 2009 AT 10:08 AM

SQM

MECHANIC
6,383 POSTS

This no spark could be due to a bad ignition control module. The ignition control module is located under the ignition coil (see diagram).
Faulty module can trigger no spark.
These modules can be tested. The best option is to remove it and take it to your local auto parts store. They have testers that can be utilized to see if the module is bad.

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.

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