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  #1 (permalink)  
Old 13 Apr 2006, 06:09 pm
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Default Chrome Intake

Got a package in the mail yesterday afternoon. Went to work (in the garage)with it last night and finished this morning.

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Old 13 Apr 2006, 06:23 pm
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Now one for the smart guys.

Code P-1494 Leak Dectection Pump - Pressure switch problem.

Got this after I put everything back together. Where the heck is this Leak Detection Pump ???? [:I] Appearently I didn't put everything back together correctly.

I also got the famous P-1684 (Battery Disconnected) and I didn't even go near the battery. [:I]
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Old 13 Apr 2006, 06:41 pm
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Location: Dallas, Tx., USA.
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Quote:
quote:Originally posted by CREWZIN

Now one for the smart guys.

Code P-1494 Leak Dectection Pump - Pressure switch problem.

Got this after I put everything back together. Where the heck is this Leak Detection Pump ???? [:I] Appearently I didn't put everything back together correctly.

I also got the famous P-1684 (Battery Disconnected) and I didn't even go near the battery. [:I]
That's strange. You got that error code after installing your new chrome intake? I would disconect your battery completely and let it sit for about 20-30 min. then reconect it. I bet your code goes away. You will have to reset all of your radio settings and clock.
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Old 13 Apr 2006, 07:18 pm
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I've pulled the Negative cable. I know that will get rid of the code, but will it come back that's the first question. Second, where is the connection that I've pulled for the Leak Detection Pump ???
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Old 13 Apr 2006, 09:01 pm
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looks good, good luck on the code problem
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Old 13 Apr 2006, 09:35 pm
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Put the Negative cable back on. Reset all (10) radio stations and adjusted the clock. Started it up and the "check engine" light is off but we'll see how long it stays off. Running good and smooth so it can't be anything I left off. [:I]
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Old 14 Apr 2006, 04:59 am
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Woaw, look very nice.There is no way to reset all the codes when everything is in place ?
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Old 14 Apr 2006, 08:13 am
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Location: hartville, ohio, USA.
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Hi Crewzin,
Did a search for "leak detection pump" in my repair manual:

An evaporation control system is connected to the
rollover valve(s)/control valve(Refer to 25 - EMISSIONS
CONTROL/EVAPORATIVE EMISSIONS/
ORVR - OPERATION) to reduce emissions of fuel
vapors into the atmosphere, when the tank is vented
due to vapor expansion in the tank. When fuel evaporates
from the fuel tank, vapors pass through vent
hoses or tubes to a charcoal canister where they are
temporarily held. When the engine is running, the
vapors are drawn into the intake manifold. In addition,
fuel vapors produced during vehicle refueling
are allowed to pass through the vent hoses/tubes to
the charcoal canister(s) for temporary storage (prior
to being drawn into the intake manifold). All models
are equipped with a self-diagnosing system using a
Leak Detection Pump (LDP) or Natural Vacuum
Leak Detection (NVLD). Refer to the Emission Control
System for additional information.
Also:
If the engine is shut-off while the On-Board diagnostics
test is running, low level tank pressure can
be trapped in the fuel tank and fuel can not be added
to the tank until the pressure is relieved. This is due
to the leak detection pump closing the vapor outlet
from the top of the tank and the one-way check valve
not allowing the tank to vent through the fill tube to
atmosphere. Therefore, when fuel is added, it will
back-up in the fill tube and shut off the dispensing
nozzle. The pressure can be eliminated in two ways:
1. Vehicle purge must be activated and for a long
enough period to eliminate the pressure. 2. Removing
the fuel cap and allowing enough time for the system
to vent thru the recirulation tube.
PT EVAPORATIVE EMISSIONS 25 - 15
NATURAL VAC LEAK DETECTION ASSY (Continued)

It also gives info about connection on one the harnesses (located near the fuel module?) These are pin out listings of the different connectors.:
C110 - BLACK (HEADLAMP AND DASH SIDE)
CAV CIRCUIT
1 G4 20DB
2 Z2 20BK/LG
3 A141 16DG/WT
4 Z1 16BK
5 K106 18WT/DG (LEAK DETECTION
PUMP)
6 K107 18OR/YL (LEAK DETECTION
PUMP)
7 -
8 -
9 -
10 -
C110 - BLACK (UNDERBODY SIDE)
CAV CIRCUIT
1 G4 20DB
2 Z2 20BK/LG
3 A141 16DG/WT
4 Z1 16BK
5 K106 20WT/DG (LEAK DETECTION
PUMP)
6 K107 20OR/YL (LEAK DETECTION
PUMP)
7 -
8 -
9 -
10 -
C111 (1.6L) - LT. GRAY (ENGINE SIDE)
CAV CIRCUIT
1 -
2 F12 20DB/WT
3 C3 20DB/BK
4 T40 14BR
5 A142 18DG/OR
6 K90 20TN
7 -
8 C21 20DB/OR
9 F20 18WT
10 L1 18VT/BK
11 L50 18WT/TN
12 A14 18GY/WT
13 -
14 -
PT 8W-

Mine is a 2004 so I dont know if any of this is applicable to your model. Hope this helps[:I]
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Old 14 Apr 2006, 09:54 am
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It got my mind dizzy from reading it. Sounds like one of the black rubber hoses (3 of them)or that electrical connection (with the two pins) that has to be disconnected when I took off the old manifold. I've checked them all out and pushed them in tight so hopefully the code won't come back. At least I'm not getting the EGR code so it looks like using the old gasket and tightening the tube down really well didn't cause any codes for that. I'll take the gas cap off and let that vent good and we'll see what happens next time I take the PT out on the road.

Striker. The only way I know of re-setting the codes is to take the negative cable off or with a scanner tool that most of us don't have. If anyone knows of an easier way, speak up.

Thanks all! [^]
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