GTP throwing codes: P1651, P1652 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 03-27-2007, 11:33 PM   #1
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Default GTP throwing codes: P1651, P1652

My GTP is throwing codes P1651 (Fan Control Relay) and P1652 (Powertrain Induced Chassis Pitch Output Circuit)

Now, the first one is probably from the fan switch override in the car.

The second one on the other hand has me baffled.

The car is misfiring on Cyl 3 and 4, so plugs and wires are in order (recommendations on both for cheap?) and it needs a Coupler for the SC.

I'll also need to do front control arm bushings. how hard is this to do and what would the cost associated be? Thanks.
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Old 03-27-2007, 11:45 PM   #2
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The NGK-tr55'* are cheap and good.
Wires- whens the last time you replaced them? Maybe you bought lifetime warranty ones?
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Old 03-28-2007, 12:23 AM   #3
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I think this qualifies for "Other 3800s".
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Old 03-28-2007, 09:05 AM   #4
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G.. (welcome to the S2 land)

Ok, the 1652 is the fan override. (Home made or Caspers?)
The body induced pitch... Hmmm I can look that up tonight.

Control arm busings. My understanding is that Randman paid $40 for them to be pressed out of one arm, never reinstalled. Dan says that they are enough of a pain that for $80 an arm, you simply buy a new arm with them already in it.

Plugs.. TR55'* at .055
Wires, I'd say if you are going to keep it put on Beldens/Autolite pros/AC Delcos...all lifetime.
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Old 03-28-2007, 02:58 PM   #5
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ok, Thanks for the help Bill. I'll look at the price of new arms then. Hopefully they are straight forward to put in.

When you coming out to help wrench on this thing?
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Old 03-28-2007, 03:10 PM   #6
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i can come out and help
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Old 03-29-2007, 04:52 PM   #7
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Quote:
Originally Posted by JimmyFloyd
ok, Thanks for the help Bill. I'll look at the price of new arms then. Hopefully they are straight forward to put in.

When you coming out to help wrench on this thing?
After my cam install this w/e, I should be able to cut down the travel time.
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