wadehilts

Hi Stewart, you were probably responding to this post on my other thread? (or maybe just coincidental timing!) Anyway, I figure this post belongs on this thread, so I'll copy&paste: Thanks for the interest and advice! My MSII kit arrives today, and I plan to get soldering this weekend. Thus far, my plan is: First I will do a fuel only implementation. I plan to use MSII's relay board and replace the 505's tachy relay. This is simply because I've heard about interior fires because of wonky relays, and my fuel pump occasionally has acted up (runs too long in its primer stage before cranking). This sounds "simple enough". But comes with a great deal of sensor installation. CLT sensor: I will use the Bosch M12 sensor that is stock with the 505. I've bought a new one and have the datasheet to properly calibrate it with MSII's software. Wideband O2: I plan to use the innovate LC-2. I'm leaning towards paying a little extra for the AFR readout that I could fit somewhere on the dash. May be useful for tuning and as a sort of "econoscope". MAP sensor: built into the MSII, I'll probably tee-off my distributor or heater controls. this will go direct into the MS unit. IAT: I am still trying to figure this one out. I've heard of a lot of heatsoak issues, and I want to avoid those. I'm going to be removing my AFM and replumbing my intake system with less restrictive piping where necessary (maybe just replacing where the AFM was with tubing). I'm not sure where the best place to put the IAT sensor is. I may have to do some experimentation. I'd love to talk to someone who has done this before with success. After a successful fuel-only implementation has been tuned, I will progress to fuel and spark control. 36-1 missing tooth wheel with a hall sensor will provide my MSII with an ignition trigger. I will ditch the dizzy and replace the coil with a 4-tower coil. I will then be able to use MSII to control a wasted-spark system. There will be significant tuning done after each step probably, but I think this will be safer than jumping into a complete implementation and ending up with no idea why the damn car won't fire! Let me know what you guys think! Wade

Hi Stewart, Thanks for the interest and advice! My MSII kit arrives today, and I plan to get soldering this weekend. Thus far, my plan is: First I will do a fuel only implementation. I plan to use MSII's relay board and replace the 505's tachy relay. This is simply because I've heard about interior fires because of wonky relays, and my fuel pump occasionally has acted up (runs too long in its primer stage before cranking). This sounds "simple enough". But comes with a great deal of sensor installation. CLT sensor: I will use the Bosch M12 sensor that is stock with the 505. I've bought a new one and have the datasheet to properly calibrate it with MSII's software. Wideband O2: I plan to use the innovate LC-2. I'm leaning towards paying a little extra for the AFR readout that I could fit somewhere on the dash. May be useful for tuning and as a sort of "econoscope". MAP sensor: built into the MSII, I'll probably tee-off my distributor or heater controls. this will go direct into the MS unit. IAT: I am still trying to figure this one out. I've heard of a lot of heatsoak issues, and I want to avoid those. I'm going to be removing my AFM and replumbing my intake system with less restrictive piping where necessary (maybe just replacing where the AFM was with tubing). I'm not sure where the best place to put the IAT sensor is. I may have to do some experimentation. I'd love to talk to someone who has done this before with success. After a successful fuel-only implementation has been tuned, I will progress to fuel and spark control. 36-1 missing tooth wheel with a hall sensor will provide my MSII with an ignition trigger. I will ditch the dizzy and replace the coil with a 4-tower coil. I will then be able to use MSII to control a wasted-spark system. There will be significant tuning done after each step probably, but I think this will be safer than jumping into a complete implementation and ending up with no idea why the damn car won't fire! Let me know what you guys think! Wade

Stewart, MSII does in fact support closed loop lambda control. You can also fit a wideband O2 to get precise AFR readings. Locking out the distributor and using my 505's Bosch 123 ICM's tach signal is an option, but I figured I might as well go all the way and fit a missing tooth wheel on the crank, which is the most precise way to get a tach signal (no distributor slop). However, I've heard using the distributor provides superb timing and excellent results as well! I have considered something like AccuSpark in my 404's dizzy, but then again, working under the hood in the 404 is a pleasure IMO.. so much space! So maybe I'll just leave it unmolested. Wade

Hi Stewart, I actually have been talking with a few guys on AussieFrogs and received a lot of good advice. I heard about the Renault engine with Renix fuel management being streets better than the Peugeot Bosch system. http://www.aussiefrogs.com/forum/peugeot-forum/121067-87-505-gls-fuel-injection-system.html To paraphrase my plan, Stewart, I plan to do exactly as you recommend: Upgrade to MSII, converting to electronic ignition and using a crank sensor to get a tach input. I'll switch over to wasted spark and eliminate the dizzy. I'll be upgrading all my sensors and tossing the AFM. Wideband O2 will be exciting, I'm considering mounting a AFR digital readout on the left hand side of the dash (I guess right hand for you Aussies) between the door and steering wheel. I don't have cruise control and none of those little buttons are used over there, so it may be just the spot. My current plan is to start with a fuel only implementation, then move to ignition after I've gotten that fairly sorted. I will need to figure out some way to mount the missing tooth wheel and Hall/VR sensor on the crank pulley. I'll also rebuild my air intake system and add a temp sensor there. Exciting stuff, I'll update as the project progresses! Currently, I'm restoring the body of a 404 that I've been working on for the last few years, so that should keep me pretty busy. Best, Wade

Could you give me a link to that thread? I'm having trouble finding it! Thanks Wade

Hello all, I have a US model 1987 505 GLS. I am strongly considering upgrading the Bosch LU2 ECU to MSII. I know that people have done this to the 505, and I love the prospect of being able to control ignition, fuel and timing via external tuning software. I am trying to develop an idea of the scope of this project and the requirements that I will need to fulfill to get a properly tuned and working system. I am looking for a general guide on a few things: Of all the sensors in the Bosch LU2 system, which are good ones to replace with more modern versions? I know I will be removing that old Air Flow Sensor and replacing it with a MAP sensor, which apparently is more more effective. I can't seem to find online what distributors the 505 2.2L ZDJL uses, but was wondering if the Bosch 0 227 100 124 guide on MSII website would be applicable to the 505 http://www.megamanual.com/ms2/Bosch_124.htm. I also see that they offer direct-coil control, which seems like a universal (for single coil engines) solution. If anyone has done such a process, could they share any roadblocks or challenges that were memorable? Anything I need to watch out for? Currently, I'm looking at http://www.ebay.com/itm/MegaSquirt-II-V3-0-Solder-It-Yourself-Standalone-Engine-Management-Kit-/331773631314?hash=item4d3f3fdb52:g:V1IAAOSwBLlU70-k&vxp=mtr to purchase. It seems relatively inexpensive, but I know there are likely other sensors I may as well upgrade. I have replaced the NTC coolant sensor thus far, as I suspected it was running rich at idle due to a faulty NTC. I have already done some reading, but haven't read all of the vast amount of general info available on MSII. I guess I was just hoping some experienced users could help narrow down the focus of my research. That's about it! Any comments or hints/suggestions are greatly appreciated! Wade

Hi all, I just purchased an '87 505 GLS with 220k miles on the odometer, I have a lot of experience working on 404s, having done a complete mechanical restoration of my 1969 404 (at age 22, I may be the youngest person in North America to have rebuilt an XC6 engine!). The 505 is new to me. It has the ZDJL 2.2L in it, and it recently was completely rebuilt. Everything new except for the fuel injection system, which is the Bosch Jetronic LU2 - i think. I am picking up the car on Saturday, but have test driven it and would like to sort out a few issues. My goal is to maximize the gas mileage and power that the car gets. Here are the problems that may be related to the fuel injection system that I am aware of: The previous owner says that the gas mileage has dropped from 20 mpg in the city to 18 mpg in the last couple months. The tachometer bounces all over - especially about 2000 rpm. It is almost useless at this point. I found this technical document on peugeot505.info : http://peugeot505.info//files/manuals/tt-sd-nsd_15-5.pdf This seems to be a good place to start troubleshooting, but some of the testing requires a "tachymetric bypass harness P/N 0091.94" and something tells me I'm not going to find one of those. Keep in mind, my goal here is to improve gas mileage and power if possible. Does anybody have recommendations as to what I can test? Are there any parts I should just go ahead and replace? Would a different fuel injection system with better efficiency be an option? I'm open to anything at this point, just looking to learn. I will talk to the former owner tonight, so if I should ask for any more information, let me know! I've also found some injectors on eBay that apparently fit my 505 (they're listed as Volvo injectors), is this an item I should look into replacing? Thanks in advance, I'm excited to promote myself to a 2 Peugeot driveway soon!