How does this look?
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,587
Likes: 0
From: Omaha NE
How does this look?
Car is running like crap, could anyone interpret this and tell me why
Here is the story of what is happening:
Car is fine for a few minutes after the first start of the day. After that, everytime I try to start, it takes a few times. While driving if I give it a blip of throttle, it dies. Car runs rough the whole time, and doesn't feel normal.
I changed the pump, and plugs out and it runs better, but still not great.
[Modified by BAdAzZV8, 9:01 PM 4/24/2003]
Here is the story of what is happening:
Car is fine for a few minutes after the first start of the day. After that, everytime I try to start, it takes a few times. While driving if I give it a blip of throttle, it dies. Car runs rough the whole time, and doesn't feel normal.
I changed the pump, and plugs out and it runs better, but still not great.
[Modified by BAdAzZV8, 9:01 PM 4/24/2003]
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,587
Likes: 0
From: Omaha NE
Re: How does this look? (JayH)
11
62-Oil Temperature Circuit (High Temperature)
72-Gear Selector Switch Fault (Start Lockout)
74
Those are the codes, I don't know what 11 & 74 are.
[Modified by BAdAzZV8, 6:42 PM 4/24/2003]
62-Oil Temperature Circuit (High Temperature)
72-Gear Selector Switch Fault (Start Lockout)
74
Those are the codes, I don't know what 11 & 74 are.
[Modified by BAdAzZV8, 6:42 PM 4/24/2003]
Racer
Joined: Sep 2002
Posts: 317
Likes: 1
From: Maple Valley WA
Re: How does this look? (BAdAzZV8)
11 huh? What does Datamaster say that is?
For a '94, I have
62 = EOT high
72 = VSS loss
74 = TCS circuit low
with no record of a code 11 available for any year.
Got a spare ECM you can throw in there to see if that's the problem? Maybe borrow one from someone else close by with a similar car?
Jay
For a '94, I have
62 = EOT high
72 = VSS loss
74 = TCS circuit low
with no record of a code 11 available for any year.
Got a spare ECM you can throw in there to see if that's the problem? Maybe borrow one from someone else close by with a similar car?
Jay
Racer
Joined: Sep 2002
Posts: 317
Likes: 1
From: Maple Valley WA
Re: How does this look? (BAdAzZV8)
Under the View menu on the main Datamaster window, there is a 'DTC Codes' menu item. That will pop up a matrix with the set codes in red - if you click the cells that are red, Datamaster will tell you what it has for that code.
OK, I just did that on my copy of Datamaster and it gives a MIL lamp fault for code 11.
I don't suppose you'ver chased all your grounds down have you? Maybe there's a loose ground at the ECM... or elsewhere
Jay
OK, I just did that on my copy of Datamaster and it gives a MIL lamp fault for code 11.
I don't suppose you'ver chased all your grounds down have you? Maybe there's a loose ground at the ECM... or elsewhere
Jay
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Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,587
Likes: 0
From: Omaha NE
Re: How does this look? (JayH)
I am looking through my file now, and I'm getting 10 deg of spark retard at times. I don't think thats good, what would make it do that.
I am sending you my file right now, can you take a look at it through datamaster, and tell me what you think?
I am sending you my file right now, can you take a look at it through datamaster, and tell me what you think?
Racer
Joined: Sep 2002
Posts: 317
Likes: 1
From: Maple Valley WA
Re: How does this look? (BAdAzZV8)
Well, I'd love to take a look at it, but don't expect any miracles, this stuff is pretty new to me as well. I've been introduced and immersed in it as a trial by fire if you know what I mean. :crazy:
Jay
Jay
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,587
Likes: 0
From: Omaha NE
Re: How does this look? (JayH)
I just looked at the whole thing vs spark retard, and the highest I got was 15deg.
I saw the code 11 is the only one that was going off when I was going through the log, so I think everything else was from previous problems.
The car is hitting open loop at times, what would make it do that.
I saw the code 11 is the only one that was going off when I was going through the log, so I think everything else was from previous problems.
The car is hitting open loop at times, what would make it do that.
Racer
Joined: Sep 2002
Posts: 317
Likes: 1
From: Maple Valley WA
Re: How does this look? (BAdAzZV8)
hmmmm,
WOT acceleration
catalytic converter overheat
faulty O2 sensor(s)
faulty ECT sensor
no reference signals to the ECM
bad PROM
voltage less than 9v
Probably a few others too....
Jay
WOT acceleration
catalytic converter overheat
faulty O2 sensor(s)
faulty ECT sensor
no reference signals to the ECM
bad PROM
voltage less than 9v
Probably a few others too....
Jay
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,587
Likes: 0
From: Omaha NE
Re: How does this look? (JayH)
I just sent the file, let me know what you think.
I think my O2s are fine, the mV jumps around, so I think they are giving the ECU a signal. My MAF should be fine, maybe there is just a ground off somewhere. I did just have the tranny worked on, maybe they left something ungrounded.
I think my O2s are fine, the mV jumps around, so I think they are giving the ECU a signal. My MAF should be fine, maybe there is just a ground off somewhere. I did just have the tranny worked on, maybe they left something ungrounded.
Racer
Joined: Sep 2002
Posts: 317
Likes: 1
From: Maple Valley WA
Re: How does this look? (BAdAzZV8)
hmmmm, I'm wondering why both your fans are on even when the coolant temp is under 150 degrees. Custom program?
You're also running the definition for an F-body?
Right around rec 1451 the cat overheats, not the following, but the next acceleration burst your knock counts go out of control and that's what's causing the spark retard.
Have you checked fuel pressure?
How many miles on the injectors? Run red line through at all?
How about the cat?
I'll keep looking, but that's all that jumped out at me.
Jay
You're also running the definition for an F-body?
Right around rec 1451 the cat overheats, not the following, but the next acceleration burst your knock counts go out of control and that's what's causing the spark retard.
Have you checked fuel pressure?
How many miles on the injectors? Run red line through at all?
How about the cat?
I'll keep looking, but that's all that jumped out at me.
Jay
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,587
Likes: 0
From: Omaha NE
Re: How does this look? (JayH)
You can change the program to Y car, I just think I recorded it in F car. I don't think it makes much difference.
I have no cats, so they can't overheat.
knock counts are due to my straight pipes(no cats, no mufflers)
It's not the injectors, I just changed them out and it runs the same with either set. I don't have a fuel press gauge. I just changed out the fuel pump and it runs a whole lot better, but still kind of bad.
I redlined it close to the end, it was in 3rd gear I think. Or if you're asking about redline fluid, no I don't run that.
I have no cats, so they can't overheat.
knock counts are due to my straight pipes(no cats, no mufflers)
It's not the injectors, I just changed them out and it runs the same with either set. I don't have a fuel press gauge. I just changed out the fuel pump and it runs a whole lot better, but still kind of bad.
I redlined it close to the end, it was in 3rd gear I think. Or if you're asking about redline fluid, no I don't run that.
Racer
Joined: Sep 2002
Posts: 317
Likes: 1
From: Maple Valley WA
Re: How does this look? (BAdAzZV8)
I have no cats, so they can't overheat.
knock counts are due to my straight pipes(no cats, no mufflers)
knock counts are due to my straight pipes(no cats, no mufflers)
It's not the injectors, I just changed them out and it runs the same with either set. I don't have a fuel press gauge. I just changed out the fuel pump and it runs a whole lot better, but still kind of bad.
Stock program in the ECU?
Jay
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,587
Likes: 0
From: Omaha NE
Re: How does this look? (JayH)
The one after the cat is not used for anything related to the ECM, it is just there for OBDII testing.
I have all 3 O2's in my headers.
I'm thinking that something went wrong when I took my tranny in to get worked on. It is actually when I started noticing it. I will go back and have them check all connections.
Custom program in the ECU, but not to turn the fans on that early. I have them both set to come on at 185degF. I did notice they were turning on almost as soon as I turned on the car, that is due to some code I think, or it being in open loop.
I have all 3 O2's in my headers.
I'm thinking that something went wrong when I took my tranny in to get worked on. It is actually when I started noticing it. I will go back and have them check all connections.
Custom program in the ECU, but not to turn the fans on that early. I have them both set to come on at 185degF. I did notice they were turning on almost as soon as I turned on the car, that is due to some code I think, or it being in open loop.
Le Mans Master
Joined: Apr 2001
Posts: 7,410
Likes: 252
From: Little Elm TX
Re: How does this look? (BAdAzZV8)
Okay, I can't answer all your questions, but I can tell you some things not to worry about as they are nomal. First, when you hook up the Data Master, it's NORMAL for the top left light in the DIC to come on. I believe that would be your Service ASR you mentioned. As long as it goes out when you disconnect, you shouldn't have anything to worry about there. I was going to say it's normally for the fans to come on as well, but I'm can't remember if it does that with Data Master or not. I know it turns them on when you go to upload or download to the computer, so I'm thinking Data Master would turn them on as well.
