mercury service manual?
 

Does anybody have a MERCURY service manual that could tell me the idle voltage setting on a 95 MERCURY 150 EFI? I started my PRO-LINE up today and it was smoking pretty heavy, don't want to choke a perspective buyer with it. Checked the TPS and it was set to .221 with the temp sensor disconnected. Did a search and found some were .135 and some were .250. Want to make sure which one I need.

I think Bigshrimpin is the Merc-man here. He'd probably know.

if you don't get it by moday, I'kl look it up when I'm back in the office

i'll check it when i get home at 1 or so today.

Therm:

Send me the serial number so I can get you the right spec. Have a FTP site? I'll send the PDF to you.

Kamikaze

Theerm:

I think this procedure covers your engine? Check your PM's

150 XR6

•150 Magnum III • 150 EFI •

175

•175 EFI • 200 • 200 EFI
With Serial Numbers
0D082000 Through 0G960499

ADJUSTMENT

1. Disconnect TPS from EFI harness (1).

1

2. Connect digital using TPS Test Lead Assembly
(1) (P/N 91-816085) between TPS connector (2)
and EFI harness connector (3). Set voltmeter to
2 DC volts.

IMPORTANT: TAN/BLACK head temperature
leads must be disconnected from port cylinder
head before adjusting TPS.

3. Disconnect TAN/BLACK engine head temperature
sensor leads located on port cylinder head.
4. Turn key to the “ON” position.
5. Loosen screws (1) securing TPS to manifold.

1

6. Rotate TPS fully clockwise (holding throttle shaft
in closed position). On models with ECM P/N
14623A15 and above, voltmeter should read

.200 - .300

. If readout is not within specifications,
adjust TPS to obtain readout of .240 - .260.

NOTE:

If engine appears to run too rich or too lean,
TPS can be readjusted. Decreasing voltage yields
leaner mixture. Increasing voltage yields richer mixture.
Allowable TPS range: .200 - .300 volts.
7. Tighten TPS screws holding correct tolerance.
8. Disconnect remote control cable from throttle
lever.
9. Slowly move throttle lever to full open position
while monitoring voltage reading. Voltage
reading should increase and decrease smoothly.
10. Set volt meter to 20 DC volts. Maximum voltage
reading at full throttle is approximately 7.46 volts.
11. Remove test lead and reconnect TPS harness to
EFI harness.

NOTE:

The Digital Diagnostic Terminal (DDT) can be
used to determine whether the TPS is set within the
recommended operating range of 0.200 – 0.300
volts. However, it is recommended that the DDT not
be used to make adjustments of the TPS. Due to the
circuitry characteristics of the ECM, the DDT is not
able to always display accurately small TPS
movements. A digital voltmeter should be used when
making adjustments to the TPS.

Thanks for the manual pages kamikaze, that was what I needed. It don't make any sense, but I started with .221 and lowered it to .200 yesterday trying to lean it out a bit to clean up the smoke some. After reading the PDF you sent me I raised it up to .240 and it actually raised the RPM's up some and cleaned the smoke up a little. I guess I was too lean to start with, and leaning it out a touch more made it bog down and not burn the oil. Gonna put it in the water in a little while and show it a guy who will hopefully fall in love:love:. I could use the money from this as my UNCLE is selling his 2000 DODGE DAKOTA 4X4 4.7L V8 with 36800 original miles for a little less than what I'm hoping for out of my boat.