Help! Error type 12??
01-28-2018, 12:20 PM
#1
Intermediate
Thread Starter
Join Date: Feb 2012
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Help! Error type 12??
I swapped my MAF over yesterday - fully tested reconditioned unit from John Speake. Car was running fine beforehand (well, old-MAF fine). Anyway, tried to start it after the swap and all I get on the dash is Error Type 12 1905 1988. There's no dash lights and the car won't fire. Can anyone help?
01-28-2018, 12:35 PM
#2
Addict
Rennlist Member
Rennlist Member
Join Date: Oct 2003
Location: Gone. On the Open Road
Posts: 16,328
Received 1,543 Likes
on
1,007 Posts
Your battery is weak. Or your starter is very tired. Or both.
“1905 1988” is the ‘boot message’ for the cluster after it gets power-cycled.
When you see this message as part of a no start scenario it means that the voltage is dropping far enough during start attemps that the cluster thinks power is being disconnected. This voltage drop will also be enough that the LH and EZK won’t be able to function.
Charge your battery.
“1905 1988” is the ‘boot message’ for the cluster after it gets power-cycled.
When you see this message as part of a no start scenario it means that the voltage is dropping far enough during start attemps that the cluster thinks power is being disconnected. This voltage drop will also be enough that the LH and EZK won’t be able to function.
Charge your battery.
01-28-2018, 12:37 PM
#3
Rennlist Member
Check that your battery is fully charged and inspect the fuel injection grounds at the back of the block under the pressure damper and regulator. Be sure to include the year of the car in your post.
01-28-2018, 04:12 PM
#4
Chronic Tool Dropper
Lifetime Rennlist
Member
Lifetime Rennlist
Member
The 1988 US model doesn't include the digital gauge cluster and has no place to generate or display the power-on message. The 1988 dash code didn't arrive until 1989 MY production to the best of my knowledge. Do you have a 1988 car? Or are you looking at the build date instead? My 1989 model was built in 12/88, for example.
01-28-2018, 04:32 PM
#5
Addict
Rennlist Member
Rennlist Member
Join Date: Oct 2003
Location: Gone. On the Open Road
Posts: 16,328
Received 1,543 Likes
on
1,007 Posts
The 1988 US model doesn't include the digital gauge cluster and has no place to generate or display the power-on message. The 1988 dash code didn't arrive until 1989 MY production to the best of my knowledge. Do you have a 1988 car? Or are you looking at the build date instead? My 1989 model was built in 12/88, for example.
01-28-2018, 05:46 PM
#6
Intermediate
Thread Starter
Join Date: Feb 2012
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
That's exactly what happens. I assumed a flat battery, so charged it overnight yesterday, and it still does it. I'm wondering if I've knocked something when I removed the MAF.
01-28-2018, 06:13 PM
#7
Team Owner
clean both battery terminals and the engine grounds and the ground strap,
if no good then add a battery jumper cable to the rear shock tower then the negative terminal then try it,
this will add another ground to the chassis
if no good then add a battery jumper cable to the rear shock tower then the negative terminal then try it,
this will add another ground to the chassis
Trending Topics
01-28-2018, 06:14 PM
#8
Addict
Rennlist Member
Rennlist Member
Join Date: Oct 2003
Location: Gone. On the Open Road
Posts: 16,328
Received 1,543 Likes
on
1,007 Posts
Before getting to more complex failure modes...
How do you know that the battery is good? How old is it? Has it recently been completely discharged?
Did you disconnect the battery before R&Ring the MAF? Are the nuts on the terminals tight? Ground strap tight at both ends?
Did you mess with the jump post connections?
How many miles on this 928? What MY is it? Auto? 5-speed.
Any history on the starter?
When you attempt to start what, if anything do you hear? Nothing? A fast-clicking?
You already noted that all the cluster lights go out. So, something is 'eating' all the current when you attempt to start.
928 was running more-or-less before you R&R'd the MAF...
Did you touch anything other than the airbox, fuel rail cover, MAF clamp and MAF connector?
01-29-2018, 01:10 AM
#9
Team Owner
Dave your asking too many questions,
Geez you sound like someone I know.
my guess would be a loose battery connection OR a corroded ground wire at the battery, or a dead cell in the battery
Geez you sound like someone I know.
my guess would be a loose battery connection OR a corroded ground wire at the battery, or a dead cell in the battery
01-29-2018, 01:29 AM
#10
Addict
Rennlist Member
Rennlist Member
Join Date: Oct 2003
Location: Gone. On the Open Road
Posts: 16,328
Received 1,543 Likes
on
1,007 Posts
01-29-2018, 05:36 AM
#11
Intermediate
Thread Starter
Join Date: Feb 2012
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Anything is possible, but I'd have to think quite a bit about how R&Ring the MAF could cause symptoms indistinguishable from a dead battery.
Before getting to more complex failure modes...
How do you know that the battery is good? How old is it? Has it recently been completely discharged? Brand new - recharged on reconditioning setting
Did you disconnect the battery before R&Ring the MAF? Are the nuts on the terminals tight? Ground strap tight at both ends? Yes
Did you mess with the jump post connections? No
How many miles on this 928? What MY is it? Auto? 5-speed. 1989 Auto
Any history on the starter? Reconditioned fitted in Dec
When you attempt to start what, if anything do you hear? Nothing? A fast-clicking? Nothing
You already noted that all the cluster lights go out. So, something is 'eating' all the current when you attempt to start.
928 was running more-or-less before you R&R'd the MAF...
Did you touch anything other than the airbox, fuel rail cover, MAF clamp and MAF connector?
Before getting to more complex failure modes...
How do you know that the battery is good? How old is it? Has it recently been completely discharged? Brand new - recharged on reconditioning setting
Did you disconnect the battery before R&Ring the MAF? Are the nuts on the terminals tight? Ground strap tight at both ends? Yes
Did you mess with the jump post connections? No
How many miles on this 928? What MY is it? Auto? 5-speed. 1989 Auto
Any history on the starter? Reconditioned fitted in Dec
When you attempt to start what, if anything do you hear? Nothing? A fast-clicking? Nothing
You already noted that all the cluster lights go out. So, something is 'eating' all the current when you attempt to start.
928 was running more-or-less before you R&R'd the MAF...
Did you touch anything other than the airbox, fuel rail cover, MAF clamp and MAF connector?
I have had this before and that time it was the knock sensor. But thats ok. I'm going to check all the fuses and relays.
01-29-2018, 12:19 PM
#12
Addict
Rennlist Member
Rennlist Member
Join Date: Oct 2003
Location: Gone. On the Open Road
Posts: 16,328
Received 1,543 Likes
on
1,007 Posts
01-29-2018, 12:38 PM
#13
Addict
Rennlist Member
Rennlist Member
Join Date: Oct 2003
Location: Gone. On the Open Road
Posts: 16,328
Received 1,543 Likes
on
1,007 Posts
It took me a minute to see that you did answer the questions. It looked, at first, like you’d just answered the last one.
At this point, I can think, easily, of one possibility: like Stan implies above, your battery ground strap may be dead.
What was up with this knock sensor issue? How did a knock sensor cause a no-start?
At this point, I can think, easily, of one possibility: like Stan implies above, your battery ground strap may be dead.
What was up with this knock sensor issue? How did a knock sensor cause a no-start?
01-30-2018, 12:23 PM
#15
Team Owner
OP please tell us what happened when you did the suggestions in Post 7