Car won't start
Thread Starter
Staging Lane
Joined: Apr 2003
Posts: 94
Likes: 0
From: Columbus, OH
Car won't start My car is currently in the body shop getting fixed from getting the front bumper ripped off by a semi. It's been sitting at the body shop for about 4 months while I fought with the insurance company and waited for parts to come in and for the body shop to get me scheduled.
The car was running fine when they finally got to work on it about 2 weeks ago. Late last week, it wouldn't start for them. Their service manager looked at it and thought it was the fuel pump. I was planning on changing it out anyways, so I ordered a Racetronix kit. When I pulled the old pump, the feed hose was cracked, so that was probably the reason for the low fuel pressure. After changing the pump, the car still won't start
I hooked up EFILive and there were some codes:
B1001 H
U1000 H "Class 2 Data Link"
U1016 H "Lost Class 2 Communications with Engine Controller - Device $10"
U1096 H "Lost Communications with Driver Information and Displays Controller - Device $60"
I cleared the codes and U1016 came back just from cranking the car. It will crank over fine, fuel pressure should be fine (need to get a guage to make sure though), and it seems to be getting spark.
Any ideas what could be wrong? I need to get it running ASAP so the body shop can finish up the work on it.
The car was running fine when they finally got to work on it about 2 weeks ago. Late last week, it wouldn't start for them. Their service manager looked at it and thought it was the fuel pump. I was planning on changing it out anyways, so I ordered a Racetronix kit. When I pulled the old pump, the feed hose was cracked, so that was probably the reason for the low fuel pressure. After changing the pump, the car still won't start
I hooked up EFILive and there were some codes:
B1001 H
U1000 H "Class 2 Data Link"
U1016 H "Lost Class 2 Communications with Engine Controller - Device $10"
U1096 H "Lost Communications with Driver Information and Displays Controller - Device $60"
I cleared the codes and U1016 came back just from cranking the car. It will crank over fine, fuel pressure should be fine (need to get a guage to make sure though), and it seems to be getting spark.
Any ideas what could be wrong? I need to get it running ASAP so the body shop can finish up the work on it.
Thread Starter
Staging Lane
Joined: Apr 2003
Posts: 94
Likes: 0
From: Columbus, OH
I took some scans while cranking it tonight. There were PIDs that showed whether VATS was killing spark or fuel and they were both set to false, so that's not the problem.
Base spark was 13 degrees, does that seem a little low to anyone? Commanded AFR was 3:1, and fuel pressue (manually checked) was 50-60 peaking around 85.
There were quite a number of RAMFAIL_DMA Counts even though they aren't showing in the logs. Could this mean that the PCM is going bad?
Also had some new codes pop up:
C0237
C0240
Anyone have any ideas?
Base spark was 13 degrees, does that seem a little low to anyone? Commanded AFR was 3:1, and fuel pressue (manually checked) was 50-60 peaking around 85.
There were quite a number of RAMFAIL_DMA Counts even though they aren't showing in the logs. Could this mean that the PCM is going bad?
Also had some new codes pop up:
C0237
C0240
Anyone have any ideas?
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
Your commanded AFR is 3... that's too rich... can you smell gas...?
What is the ambient temperature there...?
What does ECT read on the scan tool...?
Your cranking RPM barely hit 100 RPM... that's too slow.
Does the battery have enough charge...?
Did the battery get disconnected while the key was on...?
Did the PCM get removed/replaced...?
Did the PCM get removed/replaced while key was on...?
Did you actually test for spark during cranking...?
Do the injectors fire during cranking...?
What is the ambient temperature there...?
What does ECT read on the scan tool...?
Your cranking RPM barely hit 100 RPM... that's too slow.
Does the battery have enough charge...?
Did the battery get disconnected while the key was on...?
Did the PCM get removed/replaced...?
Did the PCM get removed/replaced while key was on...?
Did you actually test for spark during cranking...?
Do the injectors fire during cranking...?
Thread Starter
Staging Lane
Joined: Apr 2003
Posts: 94
Likes: 0
From: Columbus, OH
Originally Posted by joecar
Your commanded AFR is 3... that's too rich... can you smell gas...?
What is the ambient temperature there...?
What does ECT read on the scan tool...?
What does ECT read on the scan tool...?
Your cranking RPM barely hit 100 RPM... that's too slow.
Does the battery have enough charge...?
Does the battery have enough charge...?
Did the battery get disconnected while the key was on...?
Did the PCM get removed/replaced...?
Did the PCM get removed/replaced while key was on...?
Did the PCM get removed/replaced while key was on...?
Did you actually test for spark during cranking...?
Do the injectors fire during cranking...?
Thanks for your help. Think the tune could have somehow changed while sitting for so long. Should I try re-flashing it to see if it fixes the commanded AFR being 3?
