car just died while driving ....
Thread Starter
Racer
Joined: Aug 2007
Posts: 311
Likes: 23
From: Austin, TX
car just died while driving ....
1993 took it out this morning and got about 2 miles down the road when suddenly it started acting really strange. was running fine when it suddenly down shifted (or felt like it) quickly two times, the SES light comes on, check gauges and then the car loses all power. pulled over and tried to restart but it just cranks and wont fire. pull the following codes
module 1 - H32, H34, H36, H38
module 4 - H16
module 9 - H83
it showed a module 1.0 but showed nothing.
any info or suggestion much appreciated.
module 1 - H32, H34, H36, H38
module 4 - H16
module 9 - H83
it showed a module 1.0 but showed nothing.
any info or suggestion much appreciated.
Melting Slicks
Joined: Aug 2008
Posts: 2,082
Likes: 50
From: Palmdale CA
I suspect you have an Opti related issue here, a Code 16 is a [Low Resolution] signal Malfunction. A car will not run with a Code 16 set.
Watch this video and research your FSM..
http://www.youtube.com/watch?v=lFCja...ature=youtu.be
Watch this video and research your FSM..
http://www.youtube.com/watch?v=lFCja...ature=youtu.be
Melting Slicks
Joined: Feb 2013
Posts: 3,378
Likes: 2
From: Central GA
St. Jude Donor '17
Just a WAG because I have no idea what those codes are (other than the 16 that was just revealed to be electronic ignition related), Check battery voltage first, my WAG is alternator quit and car ran on straight battery until the ECU shut it down, did you get to peak under the hood yet? Broken belt sure would be a blessing. Best of luck, if anyone does know what all those codes are, please post them?
Burning Brakes
Joined: Mar 2005
Posts: 800
Likes: 2
Just a WAG because I have no idea what those codes are (other than the 16 that was just revealed to be electronic ignition related), Check battery voltage first, my WAG is alternator quit and car ran on straight battery until the ECU shut it down, did you get to peak under the hood yet? Broken belt sure would be a blessing. Best of luck, if anyone does know what all those codes are, please post them?
Melting Slicks
Joined: Feb 2013
Posts: 3,378
Likes: 2
From: Central GA
St. Jude Donor '17
I'm only a year into these cars and mine is an 87. I'll try and keep my WAG's mostly to a minimum until I get through the system and also stick to the older models!
Are the 93's on the OBD2 path that early? Sorry if a dumb question...
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Burning Brakes
Joined: Mar 2005
Posts: 800
Likes: 2
Lol - Thanks for keeping things on track for the OP
I'm only a year into these cars and mine is an 87. I'll try and keep my WAG's mostly to a minimum until I get through the system and also stick to the older models! Are the 93's on the OBD2 path that early? Sorry if a dumb question...
I'm only a year into these cars and mine is an 87. I'll try and keep my WAG's mostly to a minimum until I get through the system and also stick to the older models!
Are the 93's on the OBD2 path that early? Sorry if a dumb question...
Burning Brakes
Joined: Mar 2005
Posts: 800
Likes: 2
I've always heard it as drivetrain changes as the most was done at that time, however the interior was changed in 1990 and bodywork in 1991. Most stuff labelled for 84-87 is most likely suspension related parts as that changed in 1988.
Racer
Joined: Sep 2010
Posts: 325
Likes: 8
From: Princeton Jct. New Jersey
obd1 codes:
16 distributor ignition system, low res.,circuit malfunction
32 EGR solenoid
34 MAP sensor
36 distributor ignition system, hi res.,circuit malfunction
38 brake pedal position switch, torque converter clutch
83 reverse gear inhibit solenoid -circuit malfunction
Lots of other posabilities too, bad ground, shorted wires, circuit failures, (out of gas
).Good luck Chatham, hope it's something simple.
Voltage regulator?
Last edited by fredd1; Feb 14, 2014 at 12:40 PM.
Racer
Joined: Oct 2010
Posts: 499
Likes: 0
From: Providence RI
I suspect you have an Opti related issue here, a Code 16 is a [Low Resolution] signal Malfunction. A car will not run with a Code 16 set.
Watch this video and research your FSM..
http://www.youtube.com/watch?v=lFCja...ature=youtu.be
Watch this video and research your FSM..
http://www.youtube.com/watch?v=lFCja...ature=youtu.be
Last edited by Docderek05; Feb 14, 2014 at 03:31 PM.
Racer
Joined: Sep 2010
Posts: 325
Likes: 8
From: Princeton Jct. New Jersey
Another thought to add to the confusion...
Just realized all the codes you pulled have an H prefix, which usually means historical (ie. not recent). I believe recent codes have a C prefix so the ones you pulled may not be indicative of your current issue, especially if the ecm codes weren't re-set when you changed the opti.
Just realized all the codes you pulled have an H prefix, which usually means historical (ie. not recent). I believe recent codes have a C prefix so the ones you pulled may not be indicative of your current issue, especially if the ecm codes weren't re-set when you changed the opti.
Thread Starter
Racer
Joined: Aug 2007
Posts: 311
Likes: 23
From: Austin, TX
I was wondering that as well about the codes. I didn't change the opti when it was done so I don't know if the codes were cleared at that time. this is the first time that I have pulled the codes as I have never had to before.
Melting Slicks
Joined: Feb 2013
Posts: 3,378
Likes: 2
From: Central GA
St. Jude Donor '17
Good catch on the codes 'Fred' Is the best way to clear codes on the Corvette to just disconnect the negative battery connection?
When do you think you will get to dig in Chatham?
Is the best way to clear codes on the Corvette to just disconnect the negative battery connection? When do you think you will get to dig in Chatham?
Thread Starter
Racer
Joined: Aug 2007
Posts: 311
Likes: 23
From: Austin, TX
well this is the month for problems. my dd is a 2002 envoy that has the infamous "reduced engine power" problem. right now I am trying to chase out that problem. got to love gm.....ug ug ug I was going to drive the vette but now ....
Thread Starter
Racer
Joined: Aug 2007
Posts: 311
Likes: 23
From: Austin, TX
I was able to go out and runs some tests this morning. I followed the info provide here http://www.mainstreamtopics.com/foru...rt-diagnostic/
plenty of fuel pressure but no spark. no spark at plugs, no spark at injector. all things seem to be leading to the opti. when I got to the test section for opti I run into a problem. there wire colors called out in the test info is not what I have. here is what I have
wht
blk
wht
pnk/blk
so which wire is which? which do I use to test for hot? which ones to test for 5v etc.
looked around the opti and I don't see a water pump issue. I do know that the pump was replaced with the opti was replace back in 2010.
plenty of fuel pressure but no spark. no spark at plugs, no spark at injector. all things seem to be leading to the opti. when I got to the test section for opti I run into a problem. there wire colors called out in the test info is not what I have. here is what I have
wht
blk
wht
pnk/blk
so which wire is which? which do I use to test for hot? which ones to test for 5v etc.
looked around the opti and I don't see a water pump issue. I do know that the pump was replaced with the opti was replace back in 2010.