NefMoto > Technical > Tuning > 1.4 16v ME7.5 Project - Bigger injectors, can't find any info about them
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Author Topic: 1.4 16v ME7.5 Project - Bigger injectors, can't find any info about them  (Read 2714 times)
markus2900
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Hi, I'm planning to put bigger injectors into my 1.4 16v project and i was planning to do a simple swap of injectors from the 1.6 16v engine BCB / AZD or 1.4 16v 74kw since it's plug and play. Their OEM number should be 036906031A (1.6 16v) or 036906031L for engine BBZ (1.4 16v 74w). Either way because these injectors are VDO and Magnetti IWP058 i have zero idea where to find any values about them.

I heard from someone that it's impossible to ever set them right because they come from vehicles with Marelli ECUs and no one knows the right values. I'm not sure if this is right.
I don't know where to find any CC/min values or TVUB anything.

Did anyone here try the same thing? Or does anyone have any values. I think i've seen somewhere that the 036906031A shouldbe 137cc but i have zero idea...   

I have tried running the injectors without any mods only my bigger manifold. I just guessed some KRKTE value from some values and it started but low end was extremely bad... only worked past 5k rpm.

Thanks for any info or help.. i'm a bit of a beginner.
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fknbrkn
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mk4 1.8T AUM
krkte 0.1643

works well with stock tvub etc
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markus2900
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« Reply #2 on: September 02, 2025, 02:45:13 AM »
Quote from: fknbrkn on August 31, 2025, 08:09:03 AM
krkte 0.1643

works well with stock tvub etc


Thanks! I'll try once i fit them again. When i was guessing i tried 0.1408 KRKTE, i somehow got to this number  Grin but thanks, i'll try this.
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markus2900
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« Reply #3 on: September 09, 2025, 01:10:12 PM »
Quote from: fknbrkn on August 31, 2025, 08:09:03 AM
krkte 0.1643

works well with stock tvub etc


I tried it today and the car runs okay but when it's cold and cat is heating up the car shakes alot, very rough idle.
What should i look at.. probably TVUB.

Also i investigated and found some info about the injectors.. not much but atleast part numbers etc.. so ill throw it here if someone would look for it:

036906031A - Weber / Magnetti Marelli IWP025   200cc/m at 3bar, 14.5 Ohm (used in 1.6 16v ATN, AUS, BCB) - SQUARE connector

036906031T - Weber / Magnetti Marelli IWP123  195cc/m (200) at 3bar, 14.5 Ohm (used in 1.6 16v BCB) - OVAL connector  (aftermarket can be square!! check!)

036906031G - Weber / Magnetti Marelli IWP092 131cc/m at 3bar, 14.5 Ohm (used in 1.4 16v BCA, AXP) - OVAL connector
TVUB 6,970    8,026   9,997  11,969  14,010 V       
         2.0864 1.5072 0.9184 0.6080 0.4096 ms
- for 036906031G

036906031M - VDO Continental / Siemens DEKA A2C59513164 ---cc/m (used in 1.4 16v AUA, BBY) - OVAL connector

03C906031 - VDO Continental / Siemens DEKA  200cc/m at 3bar, 14.5 Ohm (used in Škoda 1.6 16v BTS, CFNA - newer engine with chain) - OVAL connector

036906031L - VDO Continental / Siemens DEKA A2C59513166   180-195ccm at 3 bar (used in Škoda 1.4 16v BBZ, AUB)  - OVAL connector

036906031AB- VDO Continental / Siemens DEKA A2C59513165 ---cc/m (used in Škoda 1.4 16v BKY) - OVAL connector

036906031AG - VDO Continental / Siemens DEKA A2C59506217 ---cc/m (used in Škoda 1.4 16v BUD, BXW) - OVAL connector

03C906031A/B - VDO Continental / Siemens DEKA --cc/m (used in Škoda 1.6 16v BTS, CFNA) - OVAL connector
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