Question about 1997 Chevrolet Venture

1 Answer

My mechanic told me my P0107 is possibly bad. Is this located in the same location as the P0108

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Chevrolet Master
  • 17,970 Answers

P0107 - Manifold Absolute Pressure/Barometric Pressure Circuit Low Input

The Manifold Absolute Pressure (MAP) sensor responds to changes in the intake manifold pressure (vacuum). 5 Volts is supplied to the sensor from the PCM (powertrain control module). Inside the MAP sensor is a resistor that moves in relation to manifold pressure. The resistor varies the voltage between about 1 volt to 4.5 volts (depending on engine load) and that voltage signal is returned to the PCM to indicate manifold pressure (vacuum). This signal is essential for the PCM to determine fuel delivery. A P0107 DTC is set when the PCM sees that the MAP signal voltage is less than .25 volts which is too low.

Potential Symptoms: Anytime the MAP sensor signal is low the vehicle will likely have a very difficult time starting. Other symptoms may include:
* Hard to start
* Long cranking times
* Sputtering/missing
* Blowing black smoke
* Poor fuel economy
* Dies intermittently
* MIL(Malfunction Indicator Lamp) illumination

Causes: The causes of a low MAP sensor signal circuit (P0107) could be any of the following:
* Bad MAP sensor
* Open or short in the signal circuit
* Open or short in the 5 Volt reference circuit
* Ground circuit open or shorted
* Bad PCM

Possible Solutions: First, using a scan tool with the Key on and engine running, monitor the MAP sensor voltage. If it is reading less than .5 volts, turn engine off, unplug the MAP sensor and, using a DVOM (Digital Volt/Ohm Meter) check for 5Volts on the 5 Volt reference circuit.

1. If there is not 5 Volts on the reference circuit, then check for the reference voltage at the PCM connector. If it is present at the PCM connector but not the MAP connector, repair the open in the reference circuit between the PCM and MAP harness connector. If 5 Volt reference is NOT present at the PCM connector, check powers and grounds of PCM and repair/replace as needed. (NOTE: On Chrysler products, a shorted Crank sensor, Vehicle speed sensor or any other sensor that utilizes the 5 Volt reference from the PCM can short out the 5 Volt reference. To fix simply unplug each sensor one at a time until the 5 Volt reference reappears. The last sensor unplugged is the shorted sensor.)

2. If you have a 5 Volt reference at the MAP connector, jumper the 5 volt reference circuit to the signal circuit. Now check the MAP voltage on the scan tool. It should be 4.5 to 5 Volts. If it is, replace MAP sensor. If not, repair open/short in the signal circuit wiring and re-check.

3. If all appears okay, perform a wiggle test. Start engine and manipulate the harness, connector and tap on the MAP sensor. Note any changes in voltage or engine speed. Repair connector, harness, or sensor as needed.

4. If the wiggle test checks out, use a vacuum pump (or just use your lungs) to draw a vacuum on the MAP sensor vacuum port. As you add vacuum the voltage should decrease. With no vacuum, the MAP sensor should read approximately 4.5 volts. If there is no change in MAP sensor reading on the scan tool, replace MAP sensor.

MAP Sensor DTC's: P0105, P0106, P0107, P0108 and P0109.

Hope helps (remember rated and comment this).

Posted on Aug 06, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why does it squeal when cold?


anne, are you a mechanic or asking for hubbY
are you hands on person, willing to learn?
i be not. so why ask at all.?
why not do what 99% do , get it serviced.
you think blind guessing fixes cars?
well you tell is then, its 1 in 100 shot.
how told you that a real ASE mech,
no ,he'd have corrected it now. and you'd not be here. right.
so its RUMOR< Mr/ RUMOR told me belt is ok
i say 50% bunk.,that.
belts in fact get hard with age and make noise.
for sure cold , its harder.

this is not a guess. its a list of common failures.
1; bad belt, gee its cheap fix if i guess right.
2: not tensioned correctly or the tension or is bad.
3: the pump/alt ,p/s, or a/c compr. bearing are bad.
4: bent accessory brakes, or broke causing belt disaligment and squeeels.
5: wrong belt. (too long as many stores sell)
6: a belt from fleabay china for $3, a POS.
7: defective pulleys. bent or cracked (any )idlers.

guess what, we cant just guess , takes looking
and finding and testing....
and am not doing 101 on that.





http://www.fixkick.com/tools/steth1.jpg

Oct 19, 2015 | 2006 Suzuki Swift

2 Answers

What are DTC P0107 and P0108 for this vehicle?


Use your computer Google or whatever & type:

OBD PO107

Just learn how OBD2 Systems work, because codes
have nothing to do with installing parts

You have to know how the vehicles systems & components
work & how to test them

You only replace parts when you find a problem & a part fails
a test or data is not correct

You need knowledge & professional scan tool to even work
on any vehicle since 1981

Jun 11, 2014 | 2004 Nissan Titan

1 Answer

Error code P0128


Trouble Code: P0128

Thermostat Range/Performance

Trouble Code Conditions: DTC P0107, P0108, P0112, P0113, P0116-118, P0335, P0336, P0300-P0306, P0401, P0505, P1106-P1108, P1259 and P1519, engine running at road load for 10 minutes, and the PCM detected the ECT sensor input did not reach the correct closed loop value. Note: It is possible for this code to set if the engine is left running while the hood is open for an extended period in a warm climate.

Possible Causes:


Inspect for low coolant level or for an incorrect coolant mixtureCheck the operation of the thermostat (it may be stuck open)TSB 01-064 (9/11/01) contains a repair procedure for this code

Jan 27, 2013 | 2001 Honda Civic 1.7

3 Answers

DTC Code P0107


P0107 -- CONTINUOUS
Continuous diagnostic trouble code P0107 indicated barometric pressure out of range low was detected during normal operation.

Possible cause
- faulty internal BARO sensor (PCM)

Perform KOEO On-Demand Self Test.
Is P0107 present?
Yes, REPLACE PCM. CLEAR DTC and RETEST.
No, P0107 is intermittent fault. CLEAR DTC. If DTC reappears, REPLACE PCM.

If you keep getting it, a new PCM is the only fix.

Sep 21, 2011 | 2001 Ford F350 Super Duty SuperCab

1 Answer

Code PE 1259 for Honda Odyssey 1998


Trouble Code Conditions:DTC P0107, P0108, P0135, P0137, P0138, P0141, P1128, P1129 and P1259 not set, engine running in closed loop, and the PCM detected the LONGFT value exceeded the calibrated lean limit value
Possible Causes:
Air leaks in intake manifold, exhaust pipes or exhaust manifold One or more injectors restricted or pressure regulator has failed Air is being drawn in from leaks in gaskets or other seals O2S element is deteriorated or has failed A "fuel control" sensor is out of calibration (ECT, IAT or MAP)

May 31, 2011 | Honda Odyssey Cars & Trucks

1 Answer

I SCANNED MY MALIBU & GOT A P0108 WHAT CAN I DO TO RESOLVE THIS PROBLEM


It could just be a bad signal from the MAP sensor or a poor connection at the sensor. Or a bad MAP sensor itself. Maybe the vacuum line is off or broken.

Manifold Absolute Pressure (MAP) sensor measures the changes in the intake manifold pressure which result from engine load and speed changes, and converts this measurement into a voltage output.

A closed throttle on when the engine is decelerating would produce a relatively low MAP output, while a wide open throttle would produce a high output. Manifold absolute pressure is the opposite of what you would measure on a vacuum gage. When manifold pressure is high, vacuum is low. The MAP sensor is also used to measure barometric pressure under certain conditions, which allows the PCM to automatically adjust for different altitudes.

The PCM sends a 5 volt reference signal to the MAP sensor. As the manifold pressure changes, the electrical resistance of the sensor also changes. By monitoring the sensor output voltage, the PCM can determine the manifold pressure. A higher pressure, low vacuum (high voltage) requires more fuel, while a lower pressure, higher vacuum (low voltage) requires less fuel.

A high or low voltage fault in the MAP sensor circuit should set a DTC P0107 or DTC P0108. If the MAP sensor sends an intermittent zero voltage signal to the PCM, a DTC P0106 will set.

Oct 13, 2010 | 1998 Chevrolet Malibu

1 Answer

Code p0108 where is the the temp sending unit located


P0108 is a map sensor code 4.7 front of intake 5.7 front of intake air plenuum box (by Alt)

Aug 05, 2010 | 1997 Dodge Ram 1500 Club Cab

1 Answer

Oldsmobile Delta 88, Idles High on Cold start with DTCs


Sounds like a vacumn leak. Gasket under intake plenum may be leaking. Be sure the pcv valve has the o-ring around it in the correct place also as it will set a code.

Jan 18, 2010 | 1997 Oldsmobile 88

1 Answer

How to determine the error p0107 and p108


p0107/108 is a MAP error .. thats manafold absolute pressure .. or in the old days we just called it vacuum .. the MAP sensor measures the vacuum in the intake manafold and that information is used by the computer to adjust the fuel mixture and ignition timing ... if the MAP sensor output is too low ot too high then it will trigger an error .. also if it doesnt agree within reason with the throttle position sensor ..that will also trigger an error .. look for a clogged air filter, a bad vacuum leak or just a bad MAP sensor ..

Sep 30, 2009 | 2001 Dodge Grand Caravan

Not finding what you are looking for?
1997 Chevrolet Venture Logo

1,166 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76070 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8266 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...