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Sycostang67

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Everything posted by Sycostang67

  1. When I started my truck the first time with the new ECM the fuel pressure was at its normal range of 14-15psi. After I shut the truck off I replaced a wire on my switch box and accidentally knocked a wire from the fuel pump relay. When I started it again I noticed I had zero pressure. Thinking I could figure it out quickly, the truck ran out of fuel. Once it was sorted the truck obviously wouldn’t start. I loosened the fass filter and ran the pump until it gushed and then retightened. I then cracked 2 injectors and cranked until they bubbled out fuel. The truck runs but now it takes a a few extra seconds of cranking when cold to start and the fuel pressure gauge doesn’t read until a few seconds after it has started. My pressure is now at 18-19psi. The truck runs and drives fine, not sure what to do.
  2. Mike if you lived closer I would kiss you. I had to remove the t-case boot to replace some wires and left it in neutral. 🤦‍♂️
  3. Apparently this trip isn’t over. The truck runs but now it doesn’t move. When I put it in gear the rpms drop a bit but no movement. When I try to put it back in park it grinds. I have to shut truck off to get back in park.
  4. Praise the 8lb 3oz. baby Jesus my truck lives!!! I reassembled everything, hooked the batteries up and did a TPS calibration and it fired right up like it was running yesterday. Not to proud to admit I shed a tear or two of joy. 🥳
  5. Well the news isn’t good, after talking with the folks at GoECM they have confirmed the processor is bad in my ECM and is not repairable. Thankfully they are applying my repair cost towards the purchase of a new(reman) unit. I would assume this may be why the ACS repair didn’t work. I don’t know enough about these things to know if they would have been able to test this in depth. Their cost was much cheaper than GoECM so I’m not going to say anything negative about them. According to the info ACS sent me it sounds like they tested and repaired the parts I knew weren’t working. I’ll update again when I receive the new ECM and get it installed.
  6. After some thinking and talking to the wife, I’ve decided to send the ecm to someone else. I think the problem with ACS may be that their repair is based solely on the information I give them. The shop that fixed my turbos recommended a place they use out of Texas. I called them today and they test and check the entire unit. Just found out today my daughter can’t take drivers ed for a few more months so I’m gonna use the money we saved for that to get it done.
  7. Got my turbos reinstalled, unfortunately neither of the drain kits worked so there’s $200 down the drain. I did manage to get a nice fat 7/8” drain on the big one with parts I had purchased last year but wasn’t sure would work. I’ve gone through all the grounds and the harness and found nothing wrong. I guess I’ll call ACS on Monday and see if they want to try again with my ecm, otherwise it will cost a lot more to have someone else try and fix it.
  8. More good news, just got my Quad module back from testing and it’s toast. There’s $800 I don’t have. I can’t wait to see how the truck runs on stock tuning with all the other mods if I ever get this ecm issue sorted out. My S475 is being rebuilt and they at least verified it was due to the drain hose not flowing well enough. The S357 they said was fine and needed nothing. That’s still $500 for the rebuild and $200 for new drain lines plus whatever having the ecm rebuilt a second time will run me. 🫣. The last 10 trouble free years of operation are all catching up to me.
  9. Got both turbos removed today and will be taking them in to get resealed while I figure out new drain lines. While I was in there I cleaned all the grounds and inspected the harness on the passenger side of the engine compartment. They all looked good except the one on the PCM had a little touch of green on the wire so I will most likely replace that one. I’m also unplugging and plugging all the connections as well. Would it be a good idea to smear some dielectric grease on the grounds? I did check a few on the other side before I ran out of steam. I off work this week so I will get out there again later.
  10. I did find one loose ground wire that was covered in crud, cleaned and tightened to no avail. I need to pull my big turbo off to get it resealed and remove my inter cooler and piping to clean them out so I may as well start that and get a better look at the rest of the harness while I’m at it.
  11. They listed a ton of possible causes for failure to check. Basically every sensor on the truck, damage to the harness, TSB’s, faulty grounds, etc. The truck ran perfectly and has for the last ten years when I pulled into the garage so I had no clue what to even look at. I did check some of the harness and found one tiny hole in a wire possibly from a probe, it wasn’t close to touching anything but I wrapped it up anyway. If I have time this weekend I plan to go through the whole thing and check all the grounds and fuses.
  12. Here is the email. SERVICE SUMMARY 📋 What You Reported The ECU was received with the following issue(s): Upon turning ignition on, wait to start light flashes and the truck will only crank, but not fire up. I also get no power to the fuel pump when bumping the key What We Found After functional and bench testing, we confirmed the following issues: ECM Faults No Communication to Lift Pump, Shorted Circuits (Lift Pump & APP Circuit)’ Cold Solder Joints on CPU, No 5V Reference for Sensors, No 9.5V Reference for Lift Pump and Bad "Wait to Start" Light These faults matched the reported concerns and DTCs provided. Further internal analysis confirmed abnormal behavior and internal component failure. Repairs Performed The following work was completed: ECM Repairs Replaced Lift Pump Circuit Restoring proper fuel pump communication. ⚡ Resoldered CPU and Flash Chip Eliminating weak connections for stability. 🔧 Resoldered 50 Pins Ensuring strong, reliable electrical connections. 🛠️ Replaced APP Circuit (Shares Ground Circuit with: MAP Sensor, Accelerator Pedal Position Sensor, Camshaft Position Sensor, Water in Fuel Sensor, Engine Coolant Temp Sensor, Intake Air Temp Sensor, and Engine Oil Pressure Sensor) ⚠️ Any of these could have caused the short!) Replaced 5V Driver and Replaced 9.5V Driver Restoring functionality. ⚙️ Replaced "Wait to Start" Light Circuit 🚦 Updated Software Bringing ECM up to the latest specs. 🔄💻 Post-repair testing shows full communication and functional success. ✅ Your ECU is now ready for use — once root causes are resolved.
  13. They sent me a lengthy email explaining everything they did and how all the issues I had were reflected in the condition of my ecm. I even undid everything I did the day it died before installing it just in case. Right now I need to borrow a truck to move some stuff around to make room for the ram in the backyard before my hoa notices it hasn’t moved in over 6 weeks.
  14. Finally got my ECM back and installed and truck does the same thing as before. 😡. In all the google searches I’ve done, haven’t found any evidence of this issue ever being resolved.
  15. Still sitting on my thumbs with the truck. Not totally impressed with ACS, they’ve had my ecm at a work station for 2 weeks with no updates. I finally shot them an email today and was told it should ship out today. I’m going to assume that since I didn’t get an email with a tracking number that it wasn’t shipped. Even if it ships Monday, with the holiday next week I doubt I’ll see it for another week or two. Quadzilla has my tuner, or at least I assume they do. I shipped that to them a week and a half ago and haven’t heard anything from them. I sent them an email 2 days ago and haven’t gotten a response. My truck has been sitting for about a month now and I really have some stuff to do that I can’t do with a mustang.
  16. Pulled the computer and realized I forgot to get the mileage from the dash. Would it be safe to hook the batteries back up and to get the mileage without the computer installed?
  17. Ok, I found the ACS website and should get the ecm pulled today and hopefully in the mail tomorrow.
  18. The ECM is the computer bolted to the driver side of the block, correct?
  19. I went out and completely disconnected the Quad, and did the apps reset. Truck is back to flashing WTS light even with no Quad and still does the crank no fire. I feel as though I’m looking at an ECM rebuild? I did check the little bit of live data I get with my scanner and it showed TPS at 93% while not running obviously.
  20. Pulled the truck into the garage to replace some lights. When I tried to start it the WTS light was flashing and the truck would only crank and not fire. I tried pulling codes and got nothing. I disconnected the batteries for a few minutes and nothing changed. I unplugged the Quadzilla and the WTS light functioned as normal. The truck started right up but instantly idled at 1200rpm and then went into 3cyl idle mode. I checked my idle control switch and it’s in the off position. My throttle is also unresponsive(Timbo). Thanks to my low stall converter I was able to get the truck out of the garage and back into its parking spot. When I parked it the idle dropped to 900rpm and still no response from pedal. I assume I need to do an apps reset due to disconnecting the batteries. Could the quad really be the cause of all this? I plan on doing the reset tomorrow and completely unplug the quad just to see if it runs stock.
  21. Are the tires just being spin balanced? I had a similar random vibration that turned out to be a rear tire. I took the tire in and they did a road force balance that involves putting pressure on the tire. I’ve been vibration free ever since.
  22. I’ve been running a pretty similar setup for about 2 years now, S357/S475. I have studs and my transmission was built to handle 650hp, I opted for the billet input. Also have a billet single disc low stall converter. The Quadzilla never lets my boost get too high on my daily and tow tunes, usually keeps it under 30psi. Honestly I don’t like letting it get any higher than 40 which my party tune would do if I got crazy. My main concern is my original head gasket with 265k miles, even with the studs. I usually drive like an old lady anyhow. I would think as long as you aren’t beating on it that it would hold together ok.
  23. I’m running a moog track bar, beefier than the OEM unit. I was told it had a tiny bit of play but wasn’t in need of replacing yet. I swapped it anyway while I was tearing everything else apart last weekend. Lifetime warranty ftw.
  24. I had scheduled an alignment the week prior. I get one done anytime I mess with steering parts or anything that could affect the alignment. The shop I prefer is about 20 miles away so I mainly didn’t want the truck to behave poorly during that time. I took slower back roads as well, just in case. No issues though, got it aligned this morning. Truck is quieter now and takes most bumps a lot smoother. Just pulling into my driveway is so much better than before.
  25. I’ve had to do that before but my control arms are so far out of adjustment now that I’ll let the shop handle it. I had planned to reinstall the adjusters in the same position I removed them from as I marked them beforehand. After the sawzall, torch and grinder, the marks were lost. Rotating the alignment bolts also made getting the upper arms back in easier as well.

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