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08-19-2020
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#11 |
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Join Date: Jul 2020
Location: Belgium
Posts: 31
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Re: Secondary fuel pump and chip problem
Thank you again for all of the comprehensive responses you sent me. in the next few days i will be checking the pump amperage and pressures. but as you say. the current problems (code 41, secondary pump not functional) surely come from the installed chip. I emailed Mark asking for some advice on chip selection and his opinion on the situation, hoping to hear from him.
don?t hesitate to give your opinion, any idea can help.  
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08-19-2020
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#12 |
 
Join Date: Sep 2018
Location: Groton, CT
Posts: 380
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Re: Secondary fuel pump and chip problem
The "piggybacked" chip is actually the knock sensor circuit. It was moved to the MemCal 91-95. 90 had a separate knock sensor circuit module.
I believe any MemCal code will prohibit full power mode.
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2018 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige |
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08-20-2020
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#13 |
 Join Date: May 2007
Location: Addison IL
Posts: 243
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Re: Secondary fuel pump and chip problem
Vangelis,
I can't reply to your email due to some technical issue with my email application. Try sending email to me again but without an embedded picture. |
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08-20-2020
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#14 |
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Join Date: Jul 2020
Location: Belgium
Posts: 31
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Re: Secondary fuel pump and chip problem
hello Marc, I sent you an email with another address without a photo. I hope it will work ! thank you !
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08-20-2020
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#15 |
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Join Date: Jul 2020
Location: Belgium
Posts: 31
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Re: Secondary fuel pump and chip problem
hello again, i just tested the amperage of my pumps, this is 8.63A so both pumps are working fine, what I don't understand is that when I remove 1 fuse, or both I still have 8.63A (I can hear the two pumps running) is this normal ?? thank you so much !
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08-20-2020
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#16 |
 
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Secondary fuel pump and chip problem
The amperage test Paul provided you via the fuel pump test lead bypasses the fuses and relays. It provides voltage directly to the pumps. What you see is correct.
From what I can see, I think a correctly programmed chip, for secondary delete, will solve your problem. I don't think this is a fuel issue. H
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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08-21-2020
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#17 |
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Join Date: Jul 2020
Location: Belgium
Posts: 31
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Re: Secondary fuel pump and chip problem
hello everyone, i decided to take a look below the plenum and this is what I found. it can be seen that the secondary throttle has been removed, as well as the secondary vacuum reservoir. you can see someone put some kind of paste on one of the ignition module connectors ... I will look at that later, the problem probably isn't there. What do you think ? was the job of removing the secondary butterfly done well? if so, I think it's time to buy the right chip and go have fun with it
Last edited by vanvan2801; 08-21-2020 at 05:28 AM. |
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08-21-2020
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#18 |
Join Date: Nov 2007
Location: Sunshine State
Posts: 1,071
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Re: Secondary fuel pump and chip problem
Id say the "paste" you see is actually RTV silicone and is there to make sure the connector doesn't fall off due to the broken/missing clip.
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[B]1990 #2815[/B] [COLOR="Red"][B]Red/Red[/B][/COLOR] Ported Plenum & IH (by Pete) Haibeck Chip Rebuilt FPR (by Phil) FIC Injectors Watson LT Headers 3" Stainless Works exhaust Lingenfelter Open Air Lid Bill B Built Transmission Shifter & C Beam Plates [FONT=Impact][COLOR=red]1992 [COLOR=black]#[/COLOR] 091[/COLOR][/FONT] [FONT=Impact][COLOR=#ff0000]Red/[COLOR=silver]Gray[/COLOR][/COLOR][/FONT] [B]SOLD[/B] |
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08-21-2020
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#19 |
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Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Secondary fuel pump and chip problem
Definitely a secondary delete. Looks like new coils and injectors. Even removed the butterfly shafts. The "paste" may very well be adhesive to secure the connector on the DIS. If it doesn't appear to be causing a problem I would leave it. Get a correct chip and drive it.
H
__________________
90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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08-21-2020
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#20 | |
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Join Date: Jun 2005
Location: CenCoast California
Posts: 899
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Re: Secondary fuel pump and chip problem
[QUOTE=Ccmano;313049]
Quote:
The plate on top of the MAP sensor says it's 1991 engine #1581, but I agree with the folks here. You gotta get the calibration thing sorted out, first. After you may find the SPTs have been removed or are there but not functional. |
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Linear Mode
