The problem is, it idles really inconsistently and I can rev it a few times to try to normalize it, but after 2 or 3 revs it shuts off my throttle signal... almost as if it detects something wrong. So I can't drive it to the dealership, I can barely drive out of my garage. I was relying on driving it to Norman this weekend to plan some plumbing routes and determine turbo location and intercooler location, etc etc.
Other big news... my MegaSquirt kit arrived (took pics yesterday with intentions of posting, will post them tonight) as well as my EDIS and accessories (trigger wheel, VR sensor, 4 bar map sensor) and Saturday before the possibly postponed Norman trip, I was going to drop off the trigger wheel and pulley at the machine shop so they can make me a bracket for my crank position sensor. It'll take me a few days, maybe even a week, to get the ECU and Stimulator boards all soldered together, and then another week to wire everything up. I'm starting to think I might not be able to get around the screwed up ECU as my confidence in powerchipgroup is quite low (I'm trying to be nice, haha) and I fear I might not be able to drive this thing without finishing the ECU first. My original plan was to drive with the factory ECU and old pulley until I finished the MegaSquirt.
As far as injectors go... I plan on sending them in for flow testing and enlarging, however I was going to wait until after this weekend (because it takes a week to get them back and I needed to drive it this weekend) but depending on powerchip, if it starts to look like there's no chance I'll be able to drive it here in the next few days I'll go ahead and send them in. The reason I wanted to wait is because I wanted a stable idle and tune on the factory ECU so I could eliminate any problems before moving to the new ECU. If I can't get a stable ECU back, then screw it, I'll just do without and go forth with the MegaSquirt.
Heard back from powerchip. "No, the ecu definitely has the file we saw it come in with." Heh, assclowns, that's not possible! The "park" rev was limited to 4k before, now I can rev up to 4500rpms, something's definitely different. Just talked to the dealer in case they can flash it to factory defaults locally... but they need the car to flash it. Hm... that would work if it didn't disable my throttle after a few minutes! I'll fiddle with it some tonight and check voltage on my throttle. It seems when it's disabled the idle is more stable than when the throttle is enabled... could be a bad throttle signal, perhaps coming off the Apexi or datalogger. I might disconnect those and see what happens. I still think it's a problem with the flash but this will at least narrow down possibilities.
You may just want to flatbed it to the dealer vs. sending the ECU back to Powerchip.
That's a good idea. In fact you could sign up for Triple A's [AAA] tow service with the better plan for ±75.00. That'll be way cheaper than a tow bill plus you have 6 more to use for the year (if I remember correctly). I had that when I had my 66 Ford Fairlane. It was a nice thing to have.
__________________
-Matt
2005 SRT-6
Eibach Pro-Kit
Needswings Cold Air Intake System
True dual exhaust w/X pipe & Magnaflow
Here are pics of the kit and pics of last nights progress, I completed the stimulator board. I think with as quick as I got that knocked out I should be able to get the main board done in the next few days.
I talked to a machine shop and showed them what I had in mind they said my idea for a trigger wheel bracket should be pretty easy, so I should be able to get that done Saturday. I'm thinking I can probably get everything wired up and be running on the new ECU by the end of next week, so I'm not going to bother with a reflash.
Here are pics of the kit and pics of last nights progress, I completed the stimulator board. I think with as quick as I got that knocked out I should be able to get the main board done in the next few days.
I talked to a machine shop and showed them what I had in mind they said my idea for a trigger wheel bracket should be pretty easy, so I should be able to get that done Saturday. I'm thinking I can probably get everything wired up and be running on the new ECU by the end of next week, so I'm not going to bother with a reflash.
Man, my hat's off to you! Are you going to completely remove the Bosch ECU altogether?
I won't be able to remove it all together as it's too integrated. A few posts ago I explained the plan more in detail, but in a nutshell the Bosch will run the rest of the car's functions (ABS, gauges, etc) and the new ECU will control the timing and fuel.
Very damm good progress. Cracking this problem will be the biggest hurdle to overcome and good for you to do it now. You and 430 really think things through. Remember there are some who are watching from afar. Never met anyone from Oklahoma except Johnny Bench but you are the man around here for going at it full bore. I am right behind you but the $$$ involved has made me slow way down and rethink my goals for the next few years. Do you have any photos of an OEM fuel injector from your car???? Bosch I am guessing as I assume your EMS is also. Go Rasoul go!
Yeah, $$$ is definitely a big hurdle for us all. That's why I'm hoping to get a turnkey MegaSquirt setup working and documented. So far on my ECU project I've only spent $600 for ECU --AND-- all accessories (trigger wheel, new ignition system, all harnesses and PC connectors, upgraded 4-bar map sensor, etc) !!! as opposed to the name brand stuff (AEM, Haltech) who are around the $2400 range for JUST the ECU to work with a V6 with coil-packs (the cheaper ones don't support coil-packs, and most only support 4cyl). Not to mention still need modification and/or might not work right at all with our cars to begin with. I'm having to build this thing very specifically for the sensors and outputs for this engine, and with the MS2 DIY kit, I'm able to do just that. Granted I'm on the MS forums a lot, but I'm learning a lot too! It's a lot of trial and error. I'm hoping to keep my sensor replacement/redundancy to a minimum.
As far as injectors go, I'm not sure if they are Bosch or not but you are right in that it would make sense for them to be. I'm removing my injectors tonight so I'll be able to take photos and see the sticker/label on it to see what kind it is. I'll be sending them off in the morning for flow testing and resizing. So for those curious as to how much flow they have, I'll post the full report. From what I saw on Deatschwerk's website, the reporting is quite amazing, a few pages of stats at different duty cycles. Good stuff.
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