insights on a strange DC electric phenomenon?
a couple yrs ago, i disconnected the BIRD solenoid that allows both engine and coach batts to link for charging and emergency start. since then, i have disconnect the pos term of the fully charged ...
Forum Discussion
gatorcq wrote: "ECM do have RAM, but all the memory is Non-volatile. Meaning it retains it's info without power. On all coaches after 1996, the ECU is powered down. Meaning power is removed from it. So look elsewhere."
Hummmmmmm. I'm not so sure about that. Please explain to me why on my 1999 Southwind Storm Ford F53 chassis 6.8 liter gas V10 @ 62,000 miles, if the check engine light comes on and stays on for say . . . . 500 miles with multiple cold restarts, if I disconnect the negative chassis battery lead for several minutes, the fault code(s) clear and the SES (Service Engine Soon) light goes out and stays out until I hit some hilly terrain. This works 100% of the time. The fault code set is for too low octane gasoline. (it's kind of picky about low octane fuels) I buy the recommended 87 octane (or higher) fuel but I'm not sure I always get it.
Are you saying that the fault codes are not stored in the ECM?
Chum lee
Hummmmmmm. I'm not so sure about that. Please explain to me why on my 1999 Southwind Storm Ford F53 chassis 6.8 liter gas V10 @ 62,000 miles, if the check engine light comes on and stays on for say . . . . 500 miles with multiple cold restarts, if I disconnect the negative chassis battery lead for several minutes, the fault code(s) clear and the SES (Service Engine Soon) light goes out and stays out until I hit some hilly terrain. This works 100% of the time. The fault code set is for too low octane gasoline. (it's kind of picky about low octane fuels) I buy the recommended 87 octane (or higher) fuel but I'm not sure I always get it.
Are you saying that the fault codes are not stored in the ECM?
Chum lee
