So I datalogged my car and I don't think things are ok - Third Generation F-Body Message Boards

HisDivineShadow · 07-12-2005, 03:22 PM

I used TTS Datamaster for my car, the 8D version.
When I started it it kept plinging every second or so saying data error(Engine Data Checksum Error) and sometimes it says DTC error.

And there are all these spikes, I don't think this is normal but I am not really sure what to look for or how to diagnose this, anyone care to help? I have an 8 minute log here that anyone can look at if they wish.

Here's a screenshot to show you what it looks like:

Here is the datalog(zipped at 146kb):
http://www.robothobos.com/misc/testing.zip

HisDivineShadow · 07-12-2005, 04:07 PM

I have talked with another guy and he wonders if I might have a intake leak since the fuel mixture varies alot and wildly sometimes.

HisDivineShadow · 07-12-2005, 06:54 PM

Here are some of the DTC Error codes I got:

Code:

160 secs - Err33 EGR System Fault
167 secs - Err22 TPS Low
169 secs - Err22 TPS Low
171 secs - Err52 Oil Temp Low
173 secs - Err62 Oil Temp High
174 secs - Err62 Oil Temp High
179 secs - Err12 No DRP Pulses
181 secs - Err46 Fuel Enable(VATS) Fail


566 secs - Err22 TPS Low
569 secs - Err15 Cool Temp Low
575 secs - Err43 ESC Failure
575 secs - Err23 MAT Low
585 secs - Err53 System Overvoltage (14,0 volts)
590 secs - Err21 TPS High
591 secs - Err24 Output Speed Low
594 secs - Err21 TPS High
594 secs - Err33 EGR System Fault
598 secs - Err33 EGR System Fault
599 secs - Err12 No DRP Pulses
599 secs - Err24 Output Speed Low
603 secs - Err15 Cool Temp Low
606 secs - Err23 MAT Low
607 secs - Err44 O2 Lean
613 secs - Err33 EGR System Fault

HisDivineShadow · 07-12-2005, 07:38 PM

I have gone through the error codes in the log, they all have various potentialproblems but all of them except some I could not find have the ECM being faulty as one possibility.
But then I also found I had gotten an error 51:
"EPROM/Flash Checksum Fail"

It is definitly my ECM that is broken.
But... do I need a new chip or do I need a whole new unit?

CRZYTRN-92Z28 · 07-14-2005, 01:25 AM

According to Haynes repair it could be...

defective PROM, PROM not properly installed, incorrect PROM installed, defective ECM.

Id swap in a new prom before an ECM. Ive heard of bad prom burns that have caused this error code. Reburn the prom if you have the equipment see if that fixes it. If not id try replacing the prom first.

HisDivineShadow · 07-14-2005, 01:38 AM

Quote:

Originally posted by CRZYTRN-92Z28
Id swap in a new prom before an ECM. Ive heard of bad prom burns that have caused this error code. Reburn the prom if you have the equipment see if that fixes it. If not id try replacing the prom first.

Well I've been meaning to get into that so I've ordered a BURN1, G1 adapter and C1 chip from moates.net

HisDivineShadow · 07-19-2005, 02:20 PM

Well I haven't gotten the new stuff from Moates yet though according to the tracking it should arrive tomorrow.
However I'll be leaving tonight for 10 days so damn

I did build a duplicate of the interface and it worked in the exact same fashion.