FirstLook ADS ES 100 Bedienungsanleitung

))) FirstLook®

DIAGNOSTIC PULSE SENSORS

Automotive Diagnostic Sensor

Model ADS ES 100

Quick Setup Guide

SenX Technology LLC

5315 Sunset Drive

Midland, MI 48640

Phone 866-832-8898

Fax 989-832-8908

FirstLook®is a trademark of SenX Technology, LLC

SenX®is a trademark of SenX Technology, LLC

U.S. Patent No. 6,484,589

Made in the U.S.A.

Version 3.5

Support

For support questions or warranty assistance contact:

SenX Technology, LLC

5315 Sunset Drive

Midland, MI 48640

Phone 989-832-8898 Fax 989-832-8908

Or visit our web site at http://senxtech.com

Warranty

SenX Technology, LLC warranties the products described herein for a period of 1year under

normal use and service from the date of purchase that the product will be free of defects in

material and workmanship. This warranty does not cover ordinary wear and tear, abuse,

misuse, overloading, altered products, or damage caused by the purchaser connecting the unit

incorrectly.

THERE IS NO WARRANTY OF MERCHANTABILITY. THERE ARE NO WARRANTIES WHICH EXTEND

BEYOND THE DESCRIPTION HEREIN. THERE ARE NO WARRANTIES EXPRESSED OR IMPLIED OR

ANY AFFIRMATION OF FACT OR REPRESENTATION EXCEPT AS SET FORTH HEREIN.

REMEDY

The sole responsibility and liability of SenX Technology, LLC, and purchaser's exclusive remedy

shall be limited to the repair or replacement at SenX Technology’s option, of a part or parts

not conforming to the warranty. All products requiring warranty service shall be returned to

SenX Technology within 1 year of purchase, shipping prepaid. SenX Technology will return

repaired or replaced products to the purchaser via prepaid ground transportation. In no event

shall SenX Technology be liable for damages of any nature, including incidental or

consequential damages, including but not limited to any damages resulting from non-

conformity, defect in material or workmanship.

Neither SenX Technology LLC nor its affiliates shall be liable to the purchaser of this product or

third parties for damages, losses, costs, or expenses incurred by the purchaser or third parties

as a result of: accident, misuse, or abuse of this product or unauthorized modifications,

repairs. or alterations to this product, or failure to strictly comply with SenX Technology's

operating and maintenance instructions.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in

any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,

without the prior written permission of SenX Technology, LLC.

FirstLook® and SenX®Technology are trademarks of SenX Technology, LLC



FAST AND EASY HOOK UP



LOCATE PROBLEM CYLINDERS THRU EXHAUST SYSTEM PULSES.



COLD CRANK ENGINE TEST DETERMINES CORE ENGINE

PROBLEMS- VALVE LEAKAGE, CYLINDER COMPRESSION.



HOOK UP TO FUEL PRESSURE REGULATOR AND CHECK FOR

INJECTOR PROBLEMS.

Theory of Operation

The FirstLook Diagnostic Sensor is unique because it looks at

pulses in engine airflow, allowing you to display "the pulse of

your engine" on standard scope equipment. While scanners

interrupt the information they receive from engine sensors and

engine analyzers tell us what the ignition system is doing, it is

difficult to see what was actually happening in the engine

without intrusive tests. With the FirstLook Diagnostic Sensor in

your diagnostic arsenal it will now be possible to see what is

dynamically occurring in your engine.

Pulses vary over time depending upon the stroke cycle of engine

It is important to try out your FirstLook Diagnostic Sensor on a

good engine to understand what is normal. Cause a basic

problem by disabling a plug or injector and see the effects on

the waveform. What you are looking for is a consistent

pattern, do not try and diagnose every little bump in the

waveform. It is the major deviations from normal that you

need to address.

Fuel Injector Pressure Regulator Test

1. This is one of the fastest ways to see if there is a volume difference

between any of the injectors.

2. Just remove the vacuum line from the fuel pressure regulator

and plug it. Now hook up the impulse sensor to the fuel pressure

regulator nipple.

3. Trigger the scope on #1 injector. There is no off set to think about

here. Theywill show up inthe correct fire order.

4. Set the trace up with the pulse sensor to either lv or 2v ac scale,

time is consistent with all other tests. Idle 200 ms, 1500 RPM

power brake test 100ms.

5. As the injector pintles open and close, the sensor reads the

pressure drop that the fuel pressure regulator diaphragm creates.

6. All that is left is to see is which injector amplitude is higher (more

fuel) or lower (less fuel).

7. As with all of the tests mentioned it is very important to practice on

known good cars and create certain conditions to see how they

compare.

Cold Crank 97 Chrysler Intrepid 85000 Miles

- J z . m f l r 2 —

Cold Crank Test

This is the single most important test you can run. Knowing

the basic condition of an engine can save you many hours of

work and get you to the actual problem much faster.

Starting Scope settings

1. Depending on cranking RPM time base will be .5 second to

1 second. sweep of scope screen.

2. Set scope to AC signal.

3. Starting voltage range .5 + or -.

4. Disable fuel pump or in the case of carbureted engine

disable spark.

5. Insert black end of hose with springs about 5 to 8 inches into

tail pipe.

6. Crank Engine to determine best voltage setting.

7. Once you have determined best setting crank engine and

freeze the screen to examine the pattern.

This waveform shows a typical high mileage engine. The engine is

in good shape with a small amount of valve leakage. Small

irregularities can indicate dirty or worn valves. Major problems

will show up as major fluctuations in the scope pattern. This is a

quick simple test to determine basic engine condition. Once you

determine that you have a major problem you can now proceed

to concentrate your resources in that area.

Idle Test

This test allows a mechanic to identify a problem that is specific to a

particular cylinder using a trigger signal. It also allows you to look for

intermittent problems more easily because you are actually watching

the engine running in real time.

Starting Scope Settings

1. Idle test… 650 to 700 RPM…Scope settings.

2. Set Scope to AC signal

3. Voltage settings… +1 Volts to – 1 Volts

4. Time base … 200 ms

5. Insert black end of hose with springs about 5 to 8 inches into tail pipe.

8. Start Engine and adjust voltage for best display of waveform.

9. Start Engine and allow idle to stabilize.

10.Freeze the screen to examine the pattern.

11.This test was run using #1 plug as trigger reference

2001 Chevrolet Impala 6 cylinder Engine

Firing Order 1-2-3-4-5-6

Remember cylinder offset

#5 Cylinder misfire

It is important that if you have multiple problems to solve each

problem in order and rerun the test to determine the next problem.

Injector sequence from Plug reference

As soon as valve closes injector fires. This means

injectors are 1 step to rightof exhaust sequence.

4 5 6 1 2 3 4

•

Power Brake Test.

This test is used to determine problems of engine under a

simulated load. It is best to use 2 people to do this test, one

person to operate the car and the other person to run the scope.

Starting Scope Settings

1. Set Scope to AC signal

2. Voltage settings... +1 Volts to —1 Volts

3. Time base ... 200 ms

4. Start engine and adjust voltage for best displayof waveform.

5. Put engine into gear and set brakes.

6. Slowly accelerate engine to 1500 RPM.

7. Freeze the screen to examine the pattern.

8. Return engine to idle and put in Neutral.

9. This test was run using #1 plug as trigger reference. The Cold

Crank test can be run with or without a trigger as a quick

reference to the basic condition of the engine. Using a hand

held scope it is easy to walk out the door and take a quick look

at an engine.

Red Arrows indicate #1 Plug Trigger

97 Honda Accord Power Brake

How do you find the #1 cylinder?

Tail pipe readings are offset from the trigger reference. This accounts for

the time elapsed between from ignition firing and exhaust valve opening.

You need to understand offset to properly locate a problem cylinder.

PONTIAC 3800

INJECTOR DISABLED EXHAUST AT IDLE

Vertical arrows indicate inductive trigger using cylinder #1 as reference.

This screen shot shows both the injectors and the exhaust at idle.

Firing order 1-2-3-4-5-6...Offset 5-6-1-2-3-4.

1. Tail pipe readings are offset from the trigger reference. This

accounts for time from ignition firing to exhaust valve opening.

2. From the start of your trigger point, offset the cylinders like this

3. 4 cylinder engines offset 1 pulse to the right.

4. 6 cylinder engines offset 2 pulses to the right

5. 8 cylinder engines offset 3 pulses to the right

6. This Pontiac fire order is 1-2-3-4-5-6

7. But with the offset it is read on the scope as 5-6-1-2-3-4

8. To determine timing between exhaust or injector events

refer to the timing chart included with your FirstLook

Diagnostic Sensor. 5

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