Alright, Something has got to be really wrong here. I scanned my car with the ac on and at one point I had 14* knock retard and only 14* of spark advance!!!

Here is some info from the scan when it happened:

Baro= 4.74 volts
Map= 3.78 Volts

Left O2 = 277mv
Right O2 =827mv

Left Int =131
Right Int =123

L Injc pulse = 12ms
R Injc pulse = 13ms

MAF = 89 gr/s

L Block Learn = 120
R Block Learn = 117

L Integrator = 131
R Integrator = 123

Manifold Air T.= 88.2*f
Coolant Temp= 194.90*f

Throttle angle=65%


What do you guys think the problem is?

Marvin

 

AIght is that under WOT or idle or what....You need to get all of those different pieces of data under the same conditions. Your BLMs should be 128 idealy. So should the L and R integrators. Your L and R Injec should peak at around 15ms(WOT) and should be at 1.5ms at idle.

Ofcourse the knock you're getting is at WOT im sure, so im guessing thats where your other readings are all at.

First thing you need to check is plugs/wires. I bet your wires are arching. Get somewhere pitch black and turn on the car and look under the hood from above and below. See for any sparks. If you have a burned wire, or your wires are touching other wires they shouldnt, that will do it. Also I think the plugs will cause Knock retard. Whens the last time you had wires/plugs changed?

 

What was the RPM? 65% throttle is just below the threshold to implement "power enrichment" (PE) mode at anything less than 2,800rpm, with stock programming. You need to publish a full data log, including fuel correction cells, rpm, etc.

The fact the the INT's were not 128 would appear to indicate you were still in closed loop, not in PE mode. That makes your O2 values meaningless, because they should be cylcling above and below 450mV.

The only time I have ever seen numbers like 14deg knock retrad is when the knock sensor is not connected.

 

Thanks for your Info guys the Data is a snapshot at that given moment for all the readings. I think I have a total of 21 Snapshots taken once every 1/2 second. I dont have scanning sofware like most of you do. What I have is just the scanner that saves data and then I transfer it to my computer.

My car is stock everything except for the mods in my sig.

Im going to aswer your questions with the data from that one frame taken when the Knock retard happenned. This are absolute readings at that exact instant. I have all the other data on a file called "Scan 12-25-03.psc"

This is all my scan reported in that one frame.

Here it go:

Desired Idle ---------------550 RPMs (if it was at idle)
Engine RPM----------------2075 RPMs
Coolant Temp-------------194.90* F.
Manifold Air Tmp-----------88.20*f
A/C pressure---------------171 PSI
MAP Sensor----------------4.64 Volts
Throttle Sensor------------2.72 Volts
Throttle Angle--------------65%
Battery Voltage------------12.80 Volts
Barometric Press-----------4.74 Volts
Left O2 sensor--------------277 mV
Right O2 sensor------------827 mV
Block Learn Cell------------15
Left Block learn value-----120
Right Block Learn value--117
Left Int. Value--------------131
Right Int. Value------------123
Left Inj. Pulse--------------12 mS
Right Inj. Pulse-------------13 mS
Mass Air Flow---------------89 gr/sec
CCP Duty Cycle-------------99.40% (charcoal Canister)
Idle Air Mtr. Pos------------79 steps
Learn Idle Pos--------------23 steps
Spark Advance--------------14* degree
Knock Retard----------------14* degree
Knock Sensor----------------240
EGR Duty Cycle--------------0.00%
Vehicle Speed----------------43 MPH
Engine Run time-------------1579 seconds
A/C Clutch---------------------enabled
A/C------------------------------requested
Park/Neutral-------------------not detected
Cruise Control-----------------not engaged
Brake Depressed-------------no
TCC Status---------------------Locked (torque converter)
Fan 1----------------------------off
Fan 2----------------------------off
Air Switch-----------------------off
Loop Status--------------------Closed
L Oxygen Sensor--------------Ready
R Oxygen Sensor--------------Ready
Learn Control------------------Enabled

Ok thats all I have. I left nothing behind.


if you notice
the MAF is reading 89 gr/sec,
Block learn cell is 15,
RPMs at 2075
Injectors Pulse @ 12mS and 13ms (almost stuck open?)


Hope this helps.

Marvin