First off, I was running 89 with the stock PCM to eliminate the pinging.
When I went to the HP PCM I went to 92+ octane and have had no pinging
problems. Be careful, pinging too long especially under load can be very
detrimental to your engine. As a matter of fact, DC has discontinued all HP
PCM's for 4X4's because of towing and loads and possible premature engine
failure.
IMHO,
Ron
00 SLT QC 4X2 5.9 46RE 3.92 LSD
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of John Neff
Sent: Sunday, August 27, 2000 4:28 PM
To: Dakota Mailing List
Subject: DML: MP Computer installed
My MP Comp arrived Thursday at lunch and was installed 5 minutes later.
After about 5 miles, it was beginning to shine and now, after about 50 miles
is running very strong. I picked up quite a bit of ping under load in
2200-2600 RPM range, but I'm still running 87 octane gas. And, the weather
was mid 90's with about 500 lbs of payload, A/C on and climbing a decent
hill. Next step will be to install a set of 3923 plugs and if that doesn't
eliminate it completely, I'll start upping the octane. I'm pretty confident
I will be able to tow with this computer once I'm finished with it and still
be able to light up the tires.
On a side note, by bog/flat spot in the 2300-2900 RPM range is gone. The
truck runs stronger and much smoother than with the stock computer.
All I have to do now is get the VIN and mileage flashed.
John
98 Dak 4X4 CC Sport, 5.2L, Auto, Mopar headers and Computer, F&B TB, Accel
coil, Gibson
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