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P1494 LDP failure
09-08-2010, 08:45 AM
I just put my 420a back into my 97 rs, I removed it for a head gasket leak and wile it was out I just went ahead and rebuilt it.
Issue before I removed it.
Head gasket leak.
P0455 Gross leak
Issue after I installed it.
P1494 LDP mechanical failure.
I have checked the LDP and it is working, I can here it clicking away just like before. check the vacuum and it is 1hg (I'm not to sure what it is to be)
I checked the vacuum diag. and the routing of the lines and they are the same.
Has anyone else had this same issue with the P1494 and what was the solution?
I read about a LDP sensor can someone tell me were it is at?
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