Procharger intercooler MAF placement issues - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Bildo · 07-20-2018, 12:37 PM

Has anyone experienced issues with the MAF being installed on the discharge side of procharger 1300hp intercooler? Car was running great for awhile on around 15-17lbs of boost. Then it started falling on its face when I got into it hard. Thought I was starting to see spark blow out as I had the gap set to .035 on E-85. So I swapped out the plugs with a new set gapped to .023. Still does it. Does it less in gears 1-3 but if I romp on it it sputters and falls over, clutch it in and rev it up and the engine stops sputtering. Wondering if anyone has had this sort of issue? Or if anyone has relocated the maf to the charge pipe just before the TB?

mrimpala02 · 07-20-2018, 02:30 PM

I had a similar issue when I first went to my turbo setup. But I couldn't get to 1lb of boost. Pat G determined that my MAF couldn't keep up and was slightly off. He ended up switching my car to speed density tune and never looked back. According to him it was just slightly off and still causing what seems like a major issue.

SSBUSDRVR · 07-23-2018, 07:50 PM

No Issues here, but only at 13lbs. Hope get it straightened out.

eLeSthree · 07-23-2018, 08:39 PM

Is your tune MAF only? Id put the scanner on it and do some logging. That will show you what the maf is reading.

Bildo · 07-24-2018, 07:41 AM

Tuner is going to let me borrow his HP Tuners interface to data log a couple street hits today to help narrow it down.

Bildo · 07-24-2018, 05:58 PM

So after data logging its either something funky with the ignition or the MAF, we actually unplugged the MAF and it repeated the issue. Pulling the front clip to clean the MAF and triple check all the grounds. If it still does that I am going to make a couple multi lead ground harnesses for my coils to see if that fixes it. Hoping to make my first track appearance with the build on Sunday.

eLeSthree · 07-24-2018, 08:40 PM

You could post the tune and log on hptuners forum and get better help there. Good luck

JANNETTYRACING · 07-25-2018, 09:36 AM

Quote:

Originally Posted by Bildo

Has anyone experienced issues with the MAF being installed on the discharge side of procharger 1300hp intercooler? Car was running great for awhile on around 15-17lbs of boost. Then it started falling on its face when I got into it hard. Thought I was starting to see spark blow out as I had the gap set to .035 on E-85. So I swapped out the plugs with a new set gapped to .023. Still does it. Does it less in gears 1-3 but if I romp on it it sputters and falls over, clutch it in and rev it up and the engine stops sputtering. Wondering if anyone has had this sort of issue? Or if anyone has relocated the maf to the charge pipe just before the TB?

I am not saying it is your problem but I never liked the MAF in the intercooler tank, I tune a lot of cars with the MAF in the intercooler tank and no 2 have ever been the same.

I prefer the MAF in the charge pipe before the TB I feel the response is better and more consistent from car to car.

Oil and dirt contamination may be your issue.

I prefer the MAF in a 4 inch charge pipe before the TB I feel the response is better and more consistent from car to car.

Bildo · 07-25-2018, 11:55 AM

Quote:

Originally Posted by JANNETTYRACING

I am not saying it is your problem but I never liked the MAF in the intercooler tank, I tune a lot of cars with the MAF in the intercooler tank and no 2 have ever been the same.

I prefer the MAF in the charge pipe before the TB I feel the response is better and more consistent from car to car.

Oil and dirt contamination may be your issue.

I prefer the MAF in a 4 inch charge pipe before the TB I feel the response is better and more consistent from car to car.

Yeah I wish they sold the pipe with the maf fitting in it. Going to pull the front clip and clean the MAF tonight see if I can get it to run right in higher gears. Another crappy part of it being in the intercooler is the bumper brace blocks you from pulling it out, unless you pull the whole intercooler. If that doesn't fix it I am making some multi-lead grounds and tapping into the grounds for the coils and grounding them to the heads.

Bildo · 07-29-2018, 03:55 PM

So pulled the MAF it was clean, cleaned it anyway. Put it all back together and still gives me the problem. Has had a few people look at it, its a real head scratcher, something is screwy. More than likely a wiring issue somewhere, gonna be a fun one to track down.
Not throwing any codes at all.

Bildo · 08-04-2018, 12:48 PM

Well my issue is not the MAF, not the wiring. I had the ground on the front of the drivers side head come loose at some point the bolt that held it in dropped and the ground was hanging free between the block and the procharger bracket. I am wondering if that ground bouncing around could have been enough to hose the ECM and make it act erratically. No codes being thrown now except one telling me my check engine light is out. Now falling on its face on every pull in every gear.

hammdo · 08-04-2018, 12:58 PM

Quote:

Originally Posted by Bildo

No codes being thrown now except one telling me my check engine light is out. Now falling on its face on every pull in every gear.

Are you taped into the #15 fuse (5 amp)?

This fuse is an ignition source AND the MIL light fuse.

Ck this and I’d go ahead and put in a new 5 amp fuse. I had the same issue and finally put in an add a circuit...

https://www.camaro5.com/forums/showp...&postcount=618

https://www.camaro5.com/forums/showp...&postcount=624

-Don

Slowhawk · 08-04-2018, 01:21 PM

What is the air/fuel doing? Timing?

Bildo · 08-06-2018, 08:09 AM

Wondering now if its a fuel issue, noticed the gauge on my mechanical regulator is dropping fuel pressure when it sits. Had my son rev it in neutral as I watched the gauge under the hood. Idle pressure is about 60psi when he revved it up it was dropping to 40. When I shut the motor off the gauge was reading 60 but after an two hours it bled off to 0.

07-20-2018, 02:30 PM	#2
mrimpala02 Drives: Black 2SS RS w/White Stripes Join Date: Mar 2011 Location: Katy, TX Posts: 775	I had a similar issue when I first went to my turbo setup. But I couldn't get to 1lb of boost. Pat G determined that my MAF couldn't keep up and was slightly off. He ended up switching my car to speed density tune and never looked back. According to him it was just slightly off and still causing what seems like a major issue. __________________ 2010 2SS/RS "ChriSStine": Pat G Custom Turbo CamMotion Camshaft \| AGP TT BB Garrett 62/65's \| AGP/Fore Triple Pumps \| ID1700X Injectors \| Alky Control Twin Nozzle Meth \| Custom 3" Exhaust \| 3.27 gear set w/ Tru Trac \| McLeod Twin RXT \| Barton Short Throw Shifter \| 6th Gen ZL1 Wheels \| BMR 1.4" drop springs \| Pfadt rear trailing arms & tie rods \| Installed by Me & Tuned by Pat G

07-23-2018, 07:50 PM	#3
SSBUSDRVR Drives: '11 2SS/RS IBM/BLK M6 Join Date: Mar 2011 Location: Central FL Posts: 3,748 View My Garage	No Issues here, but only at 13lbs. Hope get it straightened out. __________________ '11 IBM 2SS/RS Built and Tuned by Vengeance Racing Vengeance PCM Vengeance Racing Mast Black Label LS7 Headed 416 ProCharger Stage II D1X Race ,Monster Triple,Alky Control Meth Inj, Forgestar F14 Drag Version and a bunch of other blah blah blah.838/688 at 12lbs Street Friendly

07-23-2018, 08:39 PM	#4
eLeSthree Drives: 2011 Camaro SS 6sp Join Date: Nov 2016 Location: Drivers Seat Posts: 1,904	Is your tune MAF only? Id put the scanner on it and do some logging. That will show you what the maf is reading. __________________ 2011 Camaro SS---SOLD TMS Dart 427 FED M311s, ESS Tuning G4 Blower, DSX Triple FP Assembly, DSX FF, FIC1300, Mcleod RXT 1200HD, Edlebrock Pro Flo XT 1158whp 1017wtq. 2010 CTS-V A6 - "Stock" SOLD 630whp 658wtq 2024 F-150 RCSB 5.0 4x4 waiting for tunes...

07-24-2018, 07:41 AM	#5
Bildo Drives: 2012 2SS/RS LS3 Join Date: Dec 2011 Location: Omaha, Nebraska Posts: 1,677	Tuner is going to let me borrow his HP Tuners interface to data log a couple street hits today to help narrow it down. __________________ 2012 2SS M6, ERL Superdeck 6 427, PRC 255 Heads, Procharger F1A w/ 3.85 pulley, 1300hp intercooler, Squash Dual 450lph, E85, ID1700, RXT Clutch, DSS 1pc driveshaft, GForce axles, Eaton Detroit Trutrac, a bunch of other crap I don't feel like typing.

07-24-2018, 05:58 PM	#6
Bildo Drives: 2012 2SS/RS LS3 Join Date: Dec 2011 Location: Omaha, Nebraska Posts: 1,677	So after data logging its either something funky with the ignition or the MAF, we actually unplugged the MAF and it repeated the issue. Pulling the front clip to clean the MAF and triple check all the grounds. If it still does that I am going to make a couple multi lead ground harnesses for my coils to see if that fixes it. Hoping to make my first track appearance with the build on Sunday. __________________ 2012 2SS M6, ERL Superdeck 6 427, PRC 255 Heads, Procharger F1A w/ 3.85 pulley, 1300hp intercooler, Squash Dual 450lph, E85, ID1700, RXT Clutch, DSS 1pc driveshaft, GForce axles, Eaton Detroit Trutrac, a bunch of other crap I don't feel like typing.

07-20-2018, 12:37 PM	#1
Bildo Drives: 2012 2SS/RS LS3 Join Date: Dec 2011 Location: Omaha, Nebraska Posts: 1,677	Procharger intercooler MAF placement issues Has anyone experienced issues with the MAF being installed on the discharge side of procharger 1300hp intercooler? Car was running great for awhile on around 15-17lbs of boost. Then it started falling on its face when I got into it hard. Thought I was starting to see spark blow out as I had the gap set to .035 on E-85. So I swapped out the plugs with a new set gapped to .023. Still does it. Does it less in gears 1-3 but if I romp on it it sputters and falls over, clutch it in and rev it up and the engine stops sputtering. Wondering if anyone has had this sort of issue? Or if anyone has relocated the maf to the charge pipe just before the TB? __________________ 2012 2SS M6, ERL Superdeck 6 427, PRC 255 Heads, Procharger F1A w/ 3.85 pulley, 1300hp intercooler, Squash Dual 450lph, E85, ID1700, RXT Clutch, DSS 1pc driveshaft, GForce axles, Eaton Detroit Trutrac, a bunch of other crap I don't feel like typing.

07-24-2018, 08:40 PM	#7
eLeSthree Drives: 2011 Camaro SS 6sp Join Date: Nov 2016 Location: Drivers Seat Posts: 1,904	You could post the tune and log on hptuners forum and get better help there. Good luck __________________ 2011 Camaro SS---SOLD TMS Dart 427 FED M311s, ESS Tuning G4 Blower, DSX Triple FP Assembly, DSX FF, FIC1300, Mcleod RXT 1200HD, Edlebrock Pro Flo XT 1158whp 1017wtq. 2010 CTS-V A6 - "Stock" SOLD 630whp 658wtq 2024 F-150 RCSB 5.0 4x4 waiting for tunes...

07-29-2018, 03:55 PM	#10
Bildo Drives: 2012 2SS/RS LS3 Join Date: Dec 2011 Location: Omaha, Nebraska Posts: 1,677	So pulled the MAF it was clean, cleaned it anyway. Put it all back together and still gives me the problem. Has had a few people look at it, its a real head scratcher, something is screwy. More than likely a wiring issue somewhere, gonna be a fun one to track down. Not throwing any codes at all. __________________ 2012 2SS M6, ERL Superdeck 6 427, PRC 255 Heads, Procharger F1A w/ 3.85 pulley, 1300hp intercooler, Squash Dual 450lph, E85, ID1700, RXT Clutch, DSS 1pc driveshaft, GForce axles, Eaton Detroit Trutrac, a bunch of other crap I don't feel like typing.

08-04-2018, 12:48 PM	#11
Bildo Drives: 2012 2SS/RS LS3 Join Date: Dec 2011 Location: Omaha, Nebraska Posts: 1,677	Well my issue is not the MAF, not the wiring. I had the ground on the front of the drivers side head come loose at some point the bolt that held it in dropped and the ground was hanging free between the block and the procharger bracket. I am wondering if that ground bouncing around could have been enough to hose the ECM and make it act erratically. No codes being thrown now except one telling me my check engine light is out. Now falling on its face on every pull in every gear. __________________ 2012 2SS M6, ERL Superdeck 6 427, PRC 255 Heads, Procharger F1A w/ 3.85 pulley, 1300hp intercooler, Squash Dual 450lph, E85, ID1700, RXT Clutch, DSS 1pc driveshaft, GForce axles, Eaton Detroit Trutrac, a bunch of other crap I don't feel like typing.

08-04-2018, 01:21 PM	#13
Slowhawk Drives: 1999 Trans Am Join Date: Jul 2009 Location: Bridgewater,Ma Posts: 2,017	What is the air/fuel doing? Timing?

08-06-2018, 08:09 AM	#14
Bildo Drives: 2012 2SS/RS LS3 Join Date: Dec 2011 Location: Omaha, Nebraska Posts: 1,677	Wondering now if its a fuel issue, noticed the gauge on my mechanical regulator is dropping fuel pressure when it sits. Had my son rev it in neutral as I watched the gauge under the hood. Idle pressure is about 60psi when he revved it up it was dropping to 40. When I shut the motor off the gauge was reading 60 but after an two hours it bled off to 0. __________________ 2012 2SS M6, ERL Superdeck 6 427, PRC 255 Heads, Procharger F1A w/ 3.85 pulley, 1300hp intercooler, Squash Dual 450lph, E85, ID1700, RXT Clutch, DSS 1pc driveshaft, GForce axles, Eaton Detroit Trutrac, a bunch of other crap I don't feel like typing.