Re: MP SBEC, bad pinging problem, please help!

From: Eric (erich@dhc.net)
Date: Thu Dec 17 1998 - 23:04:33 EST

:
>>DML,
>> I just installed the Mopar Performance computer in my '95 V8 auto. After
>>installation I took it for a test spin. The first time that I got on the
gas
>>from a dead stop I thought I heard 2 or 3 tapping sounds, but I wasn't
quite
>>sure. These occured around 4000 rpm. I drove it around another 5 minutes
or
>>so, and got on it again from about 45mph. I immediately heard what sounded
>>like a drum solo of pinging coming from my beloved 318.
>> What's the story with this? I thought that running 93 octane (Mopar says
the
>>computer requires 92) would satisfy the computer's needs. I can't see that
>>anything I've done to the truck so far (headers, MSD, cat-back, pulleys,
K&N)
>>could even contribute much less cause this problem.
>> The only possible solution that I can think of would be to install a
lower
>>temp thermostat, but what temp should I go with? I know that running the
>>engine at too low an operating temp can result in as much damage to the
>>engine as the pinging and detonation. Has anyone else had this problem? If
>so,
>>please tell me how you dealt with it. Thanks in advance.

A friend of my have a 91 318 Dakota with MP controller and he had some
pinging now and then, he installed Mopar Performance plugwires and the
pinging vent away. But he had driven the stock wires for 75000 miles.
Just my 0.02

Swede/

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