code po501 speed sensor was replaced cruise control not working speedometer not working odo not working check engine light not working poor shifting missfires sometimes runs good sometimes HELP PLEESE

fishburger
0

Asked by fishburger Feb 05, 2013 at 05:33 PM about the 1998 Cadillac Catera 4 Dr STD Sedan

Question type: General

4 Answers

7jimmy7
10,925

sounds like a poor connection somewhere , body ground, maby a crowded connector, ck. if battery under rear seats is good,if i remember correctly it is, with prone connectors

judge_roy
Not Active

check connections at battery. hose off if corrorded and establish good connections.

Joseph Kopacz
315

ECU problems, unless absolutely impossibility trade it in.

judge_roy
Not Active

I've seen this occur, bought a NEW ecu and the problem persisted. It was all caused by a bad ground. ECU couldn't think straight--too bad we couldn't return *NO RETURNS on electrical parts" these things don't usually go bad by themselves, y'know.

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