: Three (3) Codes on 1996 SLS: P1406, P0401, P0108

10-25-07, 10:21 PM
Had a p1406 code. Noticed the EGR connector was bad. Tried replacing it. But, got two of the wires switched. Now got 3 codes: 1406 (EGR), 0401 (EGR) and 0108. The P0108 has Mass Air Flow sensor and Manifold Absolute Pressure as its interpretation. Did I fry these three components when i mixed the wires on the EGR connector? The EGR valve has something ratteling around in it since. is this normal? Does it need to be replaced? Can I test the electrical integrity of the EGR unit (already cleaned the pintle)? is there any way to test or clean the MAP and MAF sensors?

i'm thinking of just replacing all three (one by one...starting with the EGR valve).

any ideas or suggesitons would be greatly appreciated?

10-25-07, 10:38 PM
Correct the wiring and clear the DTC's. What is rattling in the EGR? The pintle?

10-28-07, 08:49 PM
Had the codes reset about 4 hours ago. "Service engine" light has been off since. Will let you know in a couple days if it stays off. Thanks.