Obd on a 93 bonnie sc - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-13-2013, 11:57 PM   #21
Senior Member
True Car Nut
 
rjolly87's Avatar
 
Join Date: Jun 2003
Location: Las Cruces, NM
Posts: 6,854
Thanked 298 Times in 246 Posts
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

I stuck my nose in Rockauto for a sec, and noticed a few things changed between 92 and 93, including harmonic balancer, and crank position sensor.

Also, if the car is still pretty well torn down so that the timing cover will come off easy, I recommend replacing the cam interrupter magnet on the new engine as well. The plastic retainers like to break on those and fling the magnets, setting a cam position sensor fault. They updated the design in 93. I think the 92 should work for you, but if it is easy to pull the timing cover off now, I say do it now, before the stupid thing breaks on you.

If it'* not convenient, don't worry about it. When it breaks it'* easy to spot and there are a couple of ways to get it.

Also, this gen is notorious for NOT throwing codes on Crank Position sensor related issues, you just have no ignition, no fueling (i believe), and a big question mark over everything. If you have access to the old engine, it would probably be a good idea to swap the components over.
rjolly87 is offline   Reply With Quote
Old 10-14-2013, 12:33 AM   #22
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2013
Location: Calgary
Posts: 49
Thanked 1 Time in 1 Post
jiggaman is on a distinguished road
Default

It appears the previous owner did replace the cam sensor, however i will have to check to see if the interrupter is in there.
I just took another look at the sensor, it doesnt look like i had the 0.020 clearance i needed, it was way bigger... I will re adjust it and go from there...
Unfortunately that car was junked, so I'm stuck with this one! However I should still get a voltage reading from that sensor and the metal disc regardless if the pcm is different, because the icm is getting power and so is the sensor.
As for the fuel, when you turn the key you can hear the fuel pump going, when its cranking you can smell fuel, and i pressed the purge valve on the injector rails and it shot out gasoline, however i have read enough posts here to know that if you have gas there it doesnt mean you are always getting it to your injectors...
Well ill keep picking away!
jiggaman is offline   Reply With Quote
Old 10-14-2013, 11:51 PM   #23
Senior Member
True Car Nut
 
rjolly87's Avatar
 
Join Date: Jun 2003
Location: Las Cruces, NM
Posts: 6,854
Thanked 298 Times in 246 Posts
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

Are the injectors pulsing at least? You can check with a 194/168 bulb on the harness. Cam sensor/ magnet is likely not the issue here, as it would set a code, but you will still get spark.
rjolly87 is offline   Reply With Quote
Old 10-15-2013, 03:59 AM   #24
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2013
Location: Calgary
Posts: 49
Thanked 1 Time in 1 Post
jiggaman is on a distinguished road
Default

How do you test the injectors pulsing with a bulb? Never done it!
jiggaman is offline   Reply With Quote
Old 10-15-2013, 07:12 AM   #25
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

you just hook one lead up to battery positive and one to the injector signal, and it will flash. do you get the crank sensor signal at the sensor?
jwfirebird is offline   Reply With Quote
Old 10-15-2013, 12:16 PM   #26
Senior Member
True Car Nut
 
rjolly87's Avatar
 
Join Date: Jun 2003
Location: Las Cruces, NM
Posts: 6,854
Thanked 298 Times in 246 Posts
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

I was searching the archives here, and there was one instance where someone was pulling a NA Engine out of a 93, and sticking it in a 92. There was talk of having to switch computers, or swapping many parts over. While this doesn't really apply to you, there was one point of interest, in that list was harmonic balancer and Crank Position Sensor. The issue was that the spacing and pattern was different on the tone rings. Different spacing means different crank sensor to fit in there.

I hate to say it, but 91-95 was a pretty weird time for GM. Seems like something was being changed around every year.
rjolly87 is offline   Reply With Quote
Old 10-15-2013, 01:09 PM   #27
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

so then will the 93 crank sensor and balancer fit the 92 engine
jwfirebird is offline   Reply With Quote
Old 10-15-2013, 01:33 PM   #28
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2013
Location: Calgary
Posts: 49
Thanked 1 Time in 1 Post
jiggaman is on a distinguished road
Default

Thanks for all your replies! Ive been doing some research on hall effect sensors, basically the sensor should always return 5v when the interuptor ring is not blocking the sensor magnets. When the interuptor ring is there it should read 0. So i should be able to test if it works at all by just taking the balancer off and checking for those 5 volts, maybe they did give me a bad new crank sensor... But im being bery hopeful and optimistic here.

From 92-93 they changed the sensors so you dont have to align it with the interuptor ring (which is a pain in the ***), it comes prealigned on the bracket. However the spacing shouldnt make a huge difference as long as the interuptor ring isnt touching the sensor, and it is breaking the sensor signal to create that square wavelength. I was wondering too if i could steal one off a 93...
jiggaman is offline   Reply With Quote
Old 10-15-2013, 01:52 PM   #29
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

spacing makes a big difference in these circuits, just think of abs sensors they get just a little bit of dirt under it and it will throw the abs on. you dont want to take the chance of your timing being off.
jwfirebird is offline   Reply With Quote
Old 10-15-2013, 02:43 PM   #30
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2013
Location: Calgary
Posts: 49
Thanked 1 Time in 1 Post
jiggaman is on a distinguished road
Default

That is a good point, I will recheck i. i did spend a good amount of time trying to get the clearance, there'* very little space between the harmonic balancer and the engine to get the feeler gages in, so i could of got it wrong, never hurts to check!

I just dont know if im right focusing on this crank sensor or if it'* something else... could my tdm be grounding that signal from the sensor? I think i read somewhere they can do that. I have done the resistor bypass on this car, and currently when i open the door, the secuirity light is flashing, and when i turn the key to the on position, it blinks and then shuts off.. Thats normal right?
jiggaman is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
require wiring schematic of 95 obd I to obd II connectors Drifter420 Everything Electrical & Electronic 4 06-18-2007 07:19 PM
Converting OBD II connector to OBD I on 95 Bonne dumbsioux Everything Electrical & Electronic 7 11-29-2004 12:39 PM
1993 Bonnie OBD I or II? BigRedGPK 1992-1999 1 11-14-2004 05:05 PM
are 94 SE, SSE, SSEi OBD-I or OBD-II. 94SSEgold 1992-1999 7 03-01-2004 04:59 PM
OBD on the Bonneville? 95neongirl General GM Chat 3 03-30-2003 10:18 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:49 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.