Question about 1997 Nissan Pickup

2 Answers

Electronic engine control mechanism is not sending a signal to the engine so the truck wont start.

Posted by on

  • dvitanza Jul 04, 2009

    My interest in this is to be able to understand and respond properly to the dealer that has the car. I have no aptitude for auto repair.
    I had the truck towed to the dealer on the advice of my local mechanic because he was not getting any "juice" (power? or signal) from the Engine Control Module. Local guy tells the dealer what he has found and suggests they analyse the ECM. This was very specific because the truck is old and needs body work to get inspected. If the electronic component is damaged or shot and real expensive, we will not put more $$$$ into the truck, it may be the end of the line.

    However, if the ECM can be repaired/replaced or ignored, then we are back in business.

    Meanwhile, I need to understand why the Dealer would have changed plugs and distrib. cap if he was informed of our intent to control costs and should have checked the EMC situation first. They insisted on changing these things first, though I asked about the ECM as the source of problem. Now they want $300 before they do more work.

    Any suggestions?



2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 615 Answers

Dealer would have changed plugs and distrib. cap if he was informed of your intent because first he thought that problem is through plugs and distrib only,and also mechanics or dealer they are familier with problem when these type of problem arises..they normally replace flug and distrib and got the result also.
But is in u r case it is mainly due to ECM. dealers wrong in u r case, they can byback plugs and distrip if u r not intended to pay 300$ for that.just request to byback their parts already replaced.

for more details on Electronic Engine control mechanism

Posted on Jul 04, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,689 Answers

Hi dvitanza,

Check for spark by pulling a plug wire and getting a paper clip and inserting it in the end of the boot and then hold the other end close to the block to check for spark. If it has spark check for gas by getting a fuel pressure gauge. If it has gas pressure check to see if the engine has jumped timing by pulling number 1 plug and spinning the engine over until a burst of air comes out of the cylinder. Hold you finger over the hole. It should be one of the three things above. Email me back if you need more.

if it still wont start hot

Check the distributor for oil on the optical shutter wheel. If you are sure you have fuel pressure then check the plugs for fouling as in a leaky injector or two. Next check for fire at the plugs. If the ignitor module is overheating it will not start as you describe. Email me back if you need more information.


Posted on Jul 03, 2009


1 Suggested Answer

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

1995 Honda accord ex v6 automatic transmission of code p1298

Electric Load Detector Circuit High Voltage

Possible causes - Faulty Electronic Load Detector Unit - Faulty Engine Control Module (ECM) - Electronic Load Detector Unit harness is open or shorted - Electronic Load Detector Unit circuit poor electrical connection
Possible symptoms - Engine Light ON (or Service Engine Soon Warning Light)
P1298 Honda Description The Electric Load Detector (ELD) measures the main current flow and sends that signal to the Engine Control Module (ECM) to command the alternator charging system to get fuel efficiency and decrease the drag of the engine when starting.

Aug 09, 2016 | Honda Cars & Trucks

1 Answer

Renault megane 2 1,6l 16v 2007 no clicking sound from the engine sensor and its not starting what can be fault

Hi there my name is Brandon and Im a electronic n mechanical engineering technician mechanic!! I am the man regular mechanics call when they can not find out or fix a problem I will help you n tell you step by step what to do! It sounds like A shorted 5 volt ref circuit send me pictures and I will tell you what to do

Thank you God bless you,
Your engineering technician

Ps if you how any questions you can email me and I will get back to you asap

Feb 11, 2016 | Renault Cars & Trucks

1 Answer

Is there a way to reset electronic throttle control light on 08 Chrysler town and country after it has stalled and wont restart?

No. There is not a scan tool can't either the pedal is not hooked up to engine with a cable. All computer analog signal with electrical wires. This is not one for most mechanics to diagnosos . they seem to have a issue with it. Anyways, take it to dealer. The pedal uses two sensors with oposote signals to determine position. The computer controls electric motor on engine that opens and closes throttle vale. Computer uses two sensors in throttle body to determine its position. If any of these four signals carries even slightly, nothing more than idle. Some will start and idle with no pedal response and other will stay at idle if engine was already started and once keep shuts off then won't restart. So take to dealer.

I’m happy to assist further over the phone at

May 20, 2014 | 2007 Chrysler 300c AWD Sedan New Cars

1 Answer

What is the function of the crankshaft sensor


Apr 06, 2014 | Hyundai Trajet Cars & Trucks

1 Answer

What is an ECM

Electronic Control Module, the engine management computer in plain English, the brain box in slang; some car makers call theirs an ECU (Electronic Control Unit), or a PCM (Program Control Module, or Powertrain Control Module), or ECM (Electronic Control Module). May even be other names for them. The engine computer uses several sensors (as inputs) to compute fuel requirements and spark timing (ignition timing) needed for the operating conditions at that moment, then it sends signals to controllers and switches (outputs) to run the engine at optimum efficiency.

May 23, 2013 | 2002 Mini Cooper

2 Answers

1990 Buick Century 3.3 L V-6. Starts fine and runs good while i'm parked .

check the temp sensor. and id replace the one bad injector. these engines have problems with the coil pack. id change it with one at a scrap yard.

Mar 25, 2013 | 1990 Buick Century

1 Answer

My 2005 ford 500 3.0 suddenly starts running rough wont excelerate then stallsout but it eventually starts again after a while then runs rough and stalls again mechanic saidca code for fuel pressure...

Fuel pump driver module . The fuel pump is controlled by the computers . Fuel rail pressure sensor is an input to the PCM - engine computer , the PCM sends message to the fuel pump driver module , the FPDM controls the fuel pump by PWM - pulse width modulation .
Ford Electronic Returnless Fuel System Diagnosis Part 1 Ford
Taking your vehicle to a qualified repair shop ,dealer .

Dec 30, 2017 | Cars & Trucks

1 Answer

Color of wires on iat sensor on a 2004 ford exploer 4.0 v6

I don't believe it has an IAT, (Intake Temperature Sensor). Heres what it has. Hope this helps. Cobra..
Electronic Engine Controls adobe.gif Printable View (63 KB) The electronic engine controls consist of the following:
  • powertrain control module (PCM)
  • throttle position (TP) sensor
  • engine coolant temperature (ECT) sensor
  • camshaft position (CMP) sensor
  • crankshaft position (CKP) sensor
  • mass air flow (MAF) sensor
  • heated oxygen sensor (HO2S)
  • knock sensor (KS)
The PCM carries out the following functions:
  • accepts input from various engine sensors to compute the fuel flow rate necessary to maintain a prescribed air/fuel ratio throughout the entire engine operational range.
  • outputs a command to the fuel injectors to meter the appropriate quantity of fuel.
The TP sensor:
  • sends the PCM a signal indicating the throttle plate angle.
  • is the main input to the PCM from the driver.
The ECT sensor:
  • sends the PCM a signal indicating engine temperature.
  • voltage decreases as coolant temperature increases.
The CMP sensor:
  • sends the PCM a signal indicating camshaft position used for fuel synchronization.
The CKP sensor:
  • sends the PCM a signal indicating crankshaft position.
  • is essential for calculating spark timing.
The MAF sensor:
  • uses a hot wire sensing element to measure the amount of air entering the engine. Air passing over the hot wire causes it to cool.
The front HO2S:
  • creates a voltage signal dependent on exhaust oxygen content.
  • provides feedback information to the PCM used to calculate fuel delivery.
The rear HO2S:
  • monitors oxygen content after it flows through the catalytic converter.
  • provides a voltage to the PCM used to calculate catalytic converter integrity.
The KS:
  • is used to detect engine detonation.
  • sends a voltage signal to the PCM.
  • is able to provide a signal which retards the ignition timing, as necessary.

Jun 12, 2010 | 2004 Ford Explorer

2 Answers

Cadillac wont start 1996

check your fuse box then your coil pack

Sep 04, 2009 | 1994 Cadillac DeVille

1 Answer

Volvo s80 2000 start up and engine stop wont run

i believe i have the same problem believe could be the electronic control throttle unit wihch controls you speed control on your car, acceleration but when you put it in drive it fails to go and it kicks off. it not official yet but my mechanic is telling me we start frim there,

Aug 13, 2009 | 2000 Volvo S80

Not finding what you are looking for?
1997 Nissan Pickup Logo

Related Topics:

33 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts


Level 3 Expert

80608 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

726 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

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

Answer questions

Manuals & User Guides