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p0758 and p1860 codes

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p0758 and p1860 codes

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Old

Feb 10, 2007 | 12:22 AM

#1

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From: Montgomery, IL

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p0758 and p1860 codes

I have a LQ9 engine and 4L80E transmission. I installed these in a 78 trans am. These codes are coming up when I scan the pcm. I see that the p0758 code is the shift solenoid and the p1860 is the TCC solenoid. What are the steps for troubleshooting these codes?

Old

Feb 10, 2007 | 12:37 AM

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From: BLOOMSBURG PA

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holler in the morning and ill send you detailed diagrams for trouble shooting
thanks I do need a PCM model year though

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Old

Feb 10, 2007 | 02:03 PM

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Thanks! The engine and pcm are from a 2002 Cadillac Escalade. The trans is from a 04 2wd silverado. I had the pcm programmed for the 4L80E. I checked the wires again this morning. I switched the correct wires in the round plug.

Old

Feb 10, 2007 | 05:09 PM

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Ill get that info for you in just a bit , so you have and email address I can send it to or yahoo messenger for file transfer ?

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Old

Feb 11, 2007 | 12:42 PM

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jeff_dauderman@yahoo.com

Old

Feb 12, 2007 | 06:58 PM

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what converter are you running (stall). It is a common problem when a stall higher than 3,400 is used.

Old

Feb 13, 2007 | 07:21 PM

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I have a 2800 stall converter.

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Old

Feb 19, 2007 | 10:46 AM

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I found the problem this weekend. When the 2 pins were switched in the harness to go from a 4L60E to 4L80E trans, the T and U pins weren't removed. I should have checked the harness closer.

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03, 0758, 2001, 4l60e, 4l80e, cadillac, code, p0758, p1860, pcm, shooting, silverado, transmission, trouble, troubleshooting

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