Question about 1998 Chevrolet S-10 Pickup

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Re: diagram for location of ECM (Engine Control Module) not specifically identified

Hi,
I checked your solution at the AutoZone site. Closest I come to the ECM is
the ICM (Ignition Control Module) at following link:


http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152801b639e

I'm not sure that the ICM is actually the ECM. The ECM (Engine Control Module), I believe, controls much more than the ignition timing but also fuel mixture at various RPMs and loads. I just can't seem to locate any schematics or specific information on the AutoZone site that describes the ECM. I need a diagram specific for the ECM since I am researching a reprogramming of the ECM by a company out of MT (PowerUpDiesel) that will set up my vehicle's ECM computer to provide the most efficient metering of fuel for increased power and fuel efficiency, specific to my vehicle (i.e., I provide my ECM with VIN # and tire size and they reprogram the module more accurately than the manufacturer's stock program).

I may need to just go down to my local Chevrolet dealer and get the information but thought that I could save myself a trip by getting advice from others here
RB in Anchorage

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Well i searched this link all got was this information hope it helps you :

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800bfd7d


Good luck..

Posted on Aug 18, 2008

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REDUCED ENGINE POWER: Refer to Engine Control Module Description for the 5.3L engine or Engine Control Module Description for the 6.0L engine
The powertrain has electronic controls to reduce exhaust emissions while maintaining excellent driveability and fuel economy. The engine control module (ECM) is the control center of this system. The ECM monitors numerous engine and vehicle functions. The ECM constantly monitors the information from various sensors and other inputs, and controls the systems that affect vehicle performance and emissions. The ECM also performs the diagnostic tests on various parts of the system. The ECM can recognize operational problems and alert the driver via the malfunction indicator lamp (MIL). When the ECM detects a malfunction, the ECM stores a diagnostic trouble code (DTC). The problem area is identified by the particular DTC that is set. The control module supplies a buffered voltage to various sensors and switches. Review the components and wiring diagrams in order to determine which systems are controlled by the ECM.
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---------------

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11_2_2011_5_24_58_am.png11_2_2011_5_30_11_am.jpg

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2 Answers

Engine stalls at 30mph upon hitting accellerator, then coasts to a stop. then won't restart. starter works, engine turns over, but won't fire up. next morning car starts fine. next week engine...


Hello first of all


well i am sorry a mechanic cant figure this out its really sad. ok so your problem is your either one of two things but most likely the first one i list.

1. camshaft postion sensor
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Now that being said it most likely the camshaft sensor the reason i say that is when a crankshaft postion sensor is bad the car has very hard starts and most of the time no start issues. When a camshaft postion sensor is bad the car cuts off whil driving and can be hard to start up again.

So that being said they are both pretty cheap parts i would go ahead and replace them both and i would bet my 5 years as ford mechanic that solves your issue.

The crank postion sensor is located behind the harmonic balancer pully or right beside it here is a picture from autozone.com and description.

The crankshaft position sensor identifies position of the crankshaft to the ignition control module (ICM), engine control module (ECM) or powertrain control module (PCM).
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  • Designed to meet or exceed OE specifications in form, fit and function.
  • Global coverage for import and/or domestic applications.

  • jamiesturm29_6.jpgAnd the camshaft sensor picture and info from autozone.com below.

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  • jamiesturm29_7.jpg
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    PS if this helps please 4 thumbs up it helps me continue to help on here thanks

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