Cuttoff of injectors ??

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Mura
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Cuttoff of injectors ??

Post by Mura »

During driving on low TPS angles like 2-3 degree sometimes injectors cuttoffs are occuring. It's very annoing stuff.

What is it possible to do?

P.S. TPS is zero when throttle is closed.
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Spunkster
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Post by Spunkster »

What is the TPS voltage at idle?

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Hondata
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Post by Hondata »

Can you post a datalog?
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Mura
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Voltage

Post by Mura »

of TPS is 0.47-0.49 (0-1 degree).

I will try to post datalog shortly.
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turbo_civic_si
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Post by turbo_civic_si »

i have an interesting problem with injector cut-off. it is only between 4500-5500 that it occurs. if i let off the gas above 5500 or below 4500 my afr go lean like it should, but when i do it between those ranges it just goes rich. it does it whether i let off from full throtle or if i'm slowly creeping up to that range and let off. i've messed with the map by leaning out the first column and it still does it. on the engine prior to this one, i did not have this problem.

stock b16a2
p30 ecu
1000cc injectors

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Spunkster
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Post by Spunkster »

Post the bin file and datalog of the problem

turbo_civic_si
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Post by turbo_civic_si »

here's the datalog. i'll upload the bin in a few hours.

*.rec files are not allowed?

Lambda Cal Used:

Volts Lambda

0.000 .58
0.624 .64
1.248 .70
1.872 .76
2.496 .82
2.808 .85
3.120 .88
3.432 .92
3.744 .96
4.056 1.00
4.368 1.08
4.992 1.41
Attachments
07.15.2005-1.bin
Current Bin
(32 KiB) Downloaded 57 times
07.15.2005-1.rec.bin
27 Minute Recording, 4.5MB, you have to remove .bin so hondalogger will read it.
(4.5 MiB) Downloaded 51 times

turbo_civic_si
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Post by turbo_civic_si »

could use some help on this. it's getting annoying.

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Spunkster
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Post by Spunkster »

You need to post a much shorter dataog of the problem...one under a minute in length....27 minutes is just too long to try and isolate.

RMS
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Post by RMS »

or just post marks: at what seconds/minutes in that dl did you flag the cutoff?
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RMS
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Post by RMS »

is 5.17.xx one of the events you are speaking of?
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turbo_civic_si
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Post by turbo_civic_si »

M:S

13:10
14:42
17:14

RMS
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Post by RMS »

17:13.75 definately looks suspicious.

the other marks don't show injector cutoff if you check out the injector duration.
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turbo_civic_si
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Post by turbo_civic_si »

if you zoom in, you see the duty cycle just jump to around 88%. i haven't had the time to fully check into it either. i updated the ROM as to 3.6.4. i noticed that the TPS is @ .49V. possibly the problem? don't see why that would make the d/c just up to 88%.

dnatrance
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Post by dnatrance »

I have got the same problem!

I will do a datalog and post it up

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