Direct Scan File help please

[2 QK 4 U]

I suspect my tps sensor not acting right. Please look at the TPS voltage in accordance to engine rpm. It seems like it's not right.

this was a quick run up to WOT 22lbs boost.

 

[BlackBandit]

It's hard to make a call on that as the tps voltage has nothing to do with rpm, just the position of the throttle. example: if you let off at 5000 rppm your're going to see ~.46 volts. Could you post a couple where you just floor it from a stop and do a pull to fifty or so without letting off and then another with the engine off (key on) where you just go to full throttle on back to no throttle a couple of times taking about two seconds each way?

edit: Your o2 sensor seems to be on it's way out.

 

[mikestertwo]

PM sent.

 

[2 QK 4 U]

It's hard to make a call on that as the tps voltage has nothing to do with rpm, just the position of the throttle. example: if you let off at 5000 rppm your're going to see ~.46 volts. Could you post a couple where you just floor it from a stop and do a pull to fifty or so without letting off and then another with the engine off (key on) where you just go to full throttle on back to no throttle a couple of times taking about two seconds each way?

edit: Your o2 sensor seems to be on it's way out.

Ok here is are a couple of files stomping it from a stop up to fifty or so...

 

[2 QK 4 U]

i have a commander chip from full throttle.

what could be making my P/N light up when I'm driving it?

Also the 3rd gear never lights up and the 4th hardly does.

 

[BlackBandit]

Does your car run like this with the DS unhooked? If you're on the gas the whole way then something is funny 'cause it looks like several sensors drop out at the same time. Of course, if you were letting off a little that would be normal. I would unhook the ds and try driving it as there has been issues where emi gets fed through the ribbon cable and messes with the ECM. Might give that a try. I'll look closer later. james

 

[mikestertwo]

Are you running an alcohol injection system? If so, what kind? It looks like your getting a lot of noise in the data.

 

[2 QK 4 U]

Are you running an alcohol injection system? If so, what kind? It looks like your getting a lot of noise in the data.

No alky.

 

[2 QK 4 U]

Does your car run like this with the DS unhooked? If you're on the gas the whole way then something is funny 'cause it looks like several sensors drop out at the same time. Of course, if you were letting off a little that would be normal. I would unhook the ds and try driving it as there has been issues where emi gets fed through the ribbon cable and messes with the ECM. Might give that a try. I'll look closer later. james

I'm not sure I've always got it hooked up. I'll play with it more tomorrow.

Should I unhook the cable that hooks to the ECM or just unplug the laptop?

 

[mikestertwo]

Unplug it from the ECM. When I bought my DS, I shortened the ribbon cable to about 4" and never had any noise problems.

 

[2 QK 4 U]

Unplug it from the ECM. When I bought my DS, I shortened the ribbon cable to about 4" and never had any noise problems.

unplugged it and it didn't make a difference.