Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

Understanding Scan Data

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Old Jan 7, 2014 | 05:51 AM
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afnan's Avatar
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Icon2 Understanding Scan Data

I have honda Accord 98 with F18 B engine. Today i went to scan it and following are all sensor readings. I wonder how to check them as there is no normal or abnormal range.



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Old Jan 7, 2014 | 06:38 AM
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From: East Coast 506, Canada
Default Re: Understanding Scan Data

What sensor did you want to know about specifically?

A shop manual usually has the information that you are looking for. I'm not all that familiar with the F18 but I would assume that most of the sensors are calibrated the same as the North American F22/F23.

I see that your TPS is reading a bit weird. The TPS should read approx. 0.5v @ closed throttle & approx. 4.5v @ wide open throttle.
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Old Jan 7, 2014 | 07:07 AM
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Default Re: Understanding Scan Data

I was worried about O2, Short Term Fuel Trims and Spark Advance
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Old Jan 7, 2014 | 07:37 AM
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Default Re: Understanding Scan Data

Yeah I'm not sure what your scanner is using for units on ST & LTFT? Mine uses %. It can flip between -25% & 25% before you get a CEL for lean or rich AF mixture. Depending on what % you are seeing it can tell you quite a bit about how your engine is performing. I have no idea what your units are telling you..unless that is 1.5% & 1% witch is really good.

Your timing seems a little bit on the retard side compared to the base 13°-17° that I usually see for the 2.2L. Have you made any changes to your ignition timing?
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Old Jan 7, 2014 | 05:03 PM
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Default Re: Understanding Scan Data

Nops no changes ti timing. Hiw can I verify the timings? This is Odb2b car so timmings are done by ecu.however I plan to check if timing is of by a tooth or so
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Old Jan 8, 2014 | 03:25 AM
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Default Re: Understanding Scan Data

Could you post a picture of your cars diagnostic connector. Or look over this link for what data connector is coming off the car http://alflash.com.ua/honda.htm

I thought you were in the EU, and EU did not get OBDII til '01.
EOBD DTCs http://alflash.com.ua/OBDII/EOBDcodes.pdf

There are the 3pin(OBD) and 5 pin(OBD) to 16pin OBDII adapters that come with some scanners which will allow some readout but may not be all or may be slower than anticipated.
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Old Jan 8, 2014 | 07:44 AM
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Default Re: Understanding Scan Data

Well my car engine was a JDM engine. Having said that it is ODB2B ECU i verified its wiring many many times. I Installed 16 pin DLC my self. It has K-Line Interface
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