Need help with my 4l60e
Thread Starter
Teching In
Joined: Oct 2015
Posts: 8
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Need help with my 4l60e Went out for a drive during the ride engine light came on got back and checked it with my cheap scanner and it said p1810 kept driving it couple days later and overdrive went away so I pulled the pan replaced the sensor that has 5 bolts tfp position sensor on the bottom of the valve body drove it for a little bit worked awesome went outside fired it up engine lights back on after I erased it took it down the road no problems shifting so I got an internal harness and dropped the pan and replaced it now sometimes it will got through the gears fine and then sometimes it won't shift past 2nd but still has code of p1810 even if I delete it it comes back.
Any help would be greatly appreciated
Any help would be greatly appreciated
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
The code P1810 refers to the Manifold Pressure Switch (also goes by other names) and indeed it has 5 bolts on the bottom of the valve body.
We recently had a similar thread where the OP also replaced the Pressure Switch without improvement. We asked him to remove it again and check the o-rings. Sure enough, one was missing, perhaps due to shipping.
If you are sure that the new Pressure Switch had all of its o-rings and no old o-rings were stuck to the Valve Body, you might have a wiring problem. Since you replaced the internal harness, that leaves the external harness.
In any case, I think you are on the right path.
We recently had a similar thread where the OP also replaced the Pressure Switch without improvement. We asked him to remove it again and check the o-rings. Sure enough, one was missing, perhaps due to shipping.
If you are sure that the new Pressure Switch had all of its o-rings and no old o-rings were stuck to the Valve Body, you might have a wiring problem. Since you replaced the internal harness, that leaves the external harness.
In any case, I think you are on the right path.
