Trouble Code 538

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Jan 31, 2004 | 07:18 PM

bama1

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Joined: Jan 2004

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From: Alabama

Trouble Code 538

I have a 94 Explorer sport...4.0..I get a code 538 [insufficient change in RPM/operator error in Dynamic Responce Check] Could anyone tell me what this means?...Thanks

Jan 31, 2004 | 07:57 PM

JerrySimm

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Joined: Jan 2004

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From: Pauline, South Carolina

Re: Trouble Code 538

Quote:

[insufficient change in RPM/operator error in Dynamic Responce Check] [/B]

I don't have my code book in here at the moment, but the description sounds like a problem in the WOT (Wide Open Throttle) test. As part of the testing you must briefly and rapidly depress the throttle to the floor while the engine is running. (Obviously it is not to be held to the floor - release immediately) Every time I've gotten that error it was due to the operator error part of the code (Either I forgot to do the WOT or I wasn't at the correct time in the test.