can anyone tell me whatthe typical timing advance for a 2001 ram 1500 with a 5.9l engine is please. i have mine hooked up to my scanner and it makes me wonder if 37 degrees advance is normal at 1500rpm.

 

timing while just cruising is usually in that range yes. it should drop significantly as you push down the go pedal.

 

what scanner do you have? I'm in the market for 1 and am not sure which way to go.

 

I have AutoEnginuity's scan tool for my laptop. i like it. its the first scan tool i have owned and it seems to be pretty nice. i just received it last week so i still have to learn a bit about it. that is when my laptop isnt giving me problems. anyway, it allows real time monitoring, graphing, ect.... i opted for the expansion pack for chrysler products in addition to the basic tool and it will monitor every sensor in the truck and then some.

 

Do you know if it is CAN compatible and can you change parameters such as options or tire sizes? do you have a link to their site?

 

got the link...

 

how much was the expansion pack?

 

Ive seen different prices on the internet. i found some cheaper AFTER i purchased it of course. i paid 249.00 for the expansion. and i think 249.00 for the basic scan tool software. i really havent had time to play with it to see if you can change tire sizes or other things like that though.

 

I can't say on a 2001 model year that has the OBD-II PCM computer and programming,
but I can report that on a 1995 model year Magnum 5.9V8 (has EGR)
at part throttle cruise at a steady 60 mph on level pavement
the ignition advance can be as high as
42 degree before top dead center.

The manifold vacuum at that engine power level is about 12 inches Hg

Part throttle requires more ignition advance
EGR (when it is flowing) requires still more ignition advance
Cold air temperatures require still more ignition advance

At full throttle and 4000 rpm this same 5.9 V8 had
28 btdc ignition advance:

see old post below:
----
I have been playing around with the 'record' feature of the Actron ScanTool
with OBD-I Chrysler Cartridge on my 1995 5.9V8 auto with 3.21 differential
gears.

This records and stores 5 readings, 3 seconds apart, of what happened with the
PCM computer sensors before you hit the button, and an additional 10 readings
3 seconds apart afterwards

Here is what the ScanTool recorded on some runs at full throttle in 2nd gear
up a pretty steep hill { I guess about 4% grade}. Outside temperature was in
the 70's and the barometric pressure was 29.6 inches Hg.

MPH....RPM....SparkAdv..Vacuum....O2 voltsDC

40......2804.......19..........0.9..........0.86
48......3175.......19..........1.1..........0.90
54......3485.......18..........1.2..........0.90
60......3787.......21..........1.5..........0.90
65......4093.......24..........1.6..........0.90
71......4471.......24..........1.7..........0.92
76......4785.......28..........1.7..........0.90
80......5040.......28..........1.8..........0.90

Comments:
(a) I can't explain why the degrees of advance went down from 19 to 18 around
3400 rpm, but it read the same on two runs. Notice this occurs near the engine
Torque peak, where cylinder pressures are highest.

(b) note that the O2 sensor stays fairly rich at 0.90 volts. 14.7 air/fuel
mixture is at 0.40 to 0.50 volts. Going by this graph:

http://gadgetseller.com/gauges/techinfo.htm

0.90 volts would be something around 12 air/fuel mixture on an old O2 sensor
that has 90,000 miles on it like mine does. Kenne Bell says their more
accurate 'wide range Horiba O2 sensor read 11.8 on a 5.9V8 Ram at full
throttle.


I tried several ways to get data below 2500 rpm, but when you go to full
throttle the rpm's quickly go past 2000 rpm nearly instantly so the ScanTool
could not record low rpm readings. I would guess this means the 'stall speed'
of the stock 46RH Torque Converter is something in the range of 1800 to 2000
rpm.

Intake Air Temperatures would start about 130 and drop to about 115F with the
increased airflow at high rpms.

The coolant temperature started the runs at about 194 and went as high as 206
near the end of the thirty seconds runs at full throttle.

I made these runs after putting 7.5 gallons of 93 octane gasoline in a 26
gallon tank that showed 1/8th of a tank of 87 octane. This raised the fuel
gauge to 3/8ths of a tank. I would guess this blend worked out to be 89 to 90
octane. No pinging was heard at all during the runs - and I was listening
carefully for it. If I run straight 87 octane I hear slight pinging at 3800+
rpm.

This is the standard factory 1995 PCM computer with OBD-I software, not the
Mopar Performance Computer upgrade that specifies premium gasoline.