Hi Friend,
Well, i have a big problem here. Some weeks ago my Corvette 91 Aut 350 LT5 starts a high idle rpm ( 3188 rpm) and bad throtle reponse. I bought a Actron Scanner and try to connect with the ECM but i cant stabilish the connection. I the GM repair manual and the 1 was check some circuits and everything was ok. The 2° step was change the ECM but i used the same MEM-CAL and i can´t connect the scanner with the new ECM. The next step would be change the MEM-CAL but before anything, i would like to be sure that the MEM-CAL is the problem. I change the IAC and check the IAT and CTS. The sensors are ok and i don´t find any leak in the manifold. What can i do to try to solve this problem? Thanks for any help that you can give me!
Regards.
Clemente K. Sutto
Can you turn on and off three times count flash like one flush =1, two flushes =2 give you 12, or 2=2 3=3 give you 23.
SOURCE: 1992 Chevy S10 4.3 Auto
Inside the alternator,there is a tri-diode circuit.
It's integrated into the voltage regulator.
When one or more of the diode(s) fail,AC voltage will ripple to the 12V DC circuit.
12V equipment like your computer (ECU) will generate faults.
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Auto parts store has a tester that can check for AC ripple voltage.
This will prove the tri-diodes is in question or not.
Call ahead and make sure they has a tester like Midtronic to test your car.
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If you has a volt meter then check the output at the post.
An old battery (40+ months old) will has high internal resistance and cause slow charge and reduce voltage.
A FULLY charged battery (post disconnected) should read 13.8V
12.6V is discharged.
They have it for $21.99 + $5.00 shipping. Or just search on ANTENNA MAST, there are 2,700 matches for this search.
necss03
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