I am starting an engine swap and I'm trying to keep things as clean as possible on the wiring side. Does anyone know where to find new pins and or connectors, unassembled?
I need parts for C203 (15 pins, between driver and passenger seat) and C500 (34 pins, at the battery).
New pin are available... a few sources in my Cave, Wire Service
I suggest crimp then solder for best results.
------------------ Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should. (Jurassic Park)
Thank you for the link. I hopped through some pages and that is a great write up of all sorts of different wiring issues.
Maybe I overlooked something, but I didn't see part numbers for pins or connectors for C203 and C500. Also, where could they be ordered from? Terminal Supply (because there is a physical store about 8 miles from my house) and Mouser.com are my two go-to shopping sources for wiring parts, but I'm not sure if they would help with parts this old.
Also, somewhat related, do you know what C203 pin C is used for? It looks BRN/WHT or BLK/WHT in the car. I went through all of secion 8A in the service manual twice and that is the only pin who's function I don't know out of everything in C500 and C203. This is in a 1988 GT, manual transmission.
Awesome! That looks like most of what I need. The C500 is a real mess with whatever that sealant stuff is thats injected in the connector. I kind of doubt you can find those new anymore though.
Awesome! That looks like most of what I need. The C500 is a real mess with whatever that sealant stuff is thats injected in the connector. I kind of doubt you can find those new anymore though.
Only this part of the connector was made. To purchase contact FieroX. I have some also but I would have to charge more than he sells them for, so you might as well go directly to the source.
They are lacking the secondary terminal retention fork, but you can use your old one. Same thing for the missing back cover.
Use dielectric grease instead of the goo that was in the old ones.
...do you know what C203 pin C is used for? It looks BRN/WHT or BLK/WHT in the car. I went through all of secion 8A in the service manual twice and that is the only pin who's function I don't know out of everything in C500 and C203. This is in a 1988 GT, manual transmission.
C203 pin C is the SES lamp or check engine light wire depending on what you want to call it. Dan
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DARN Cars now open with Over 30 years wiring experience between cars and trade as an avionics technician in both Canadian Air Force and civilian aviation. Over 25 years experience building and modifying cars. Over 10 years of full Fiero engine swaps and harnesses building and still going.
The C500 is the same connector as the Fiero C100 up front just different colour wires and the C203 was used in many other GM vehicles up into the 90's including even trucks and the space shuttle/dust buster Trans Sport vans as well as the F body cars. Dan
Thanks Dan. I was starting to notice that yesterday. I have two service manuals, one for a 1988 Fiero and one for a 1995 Beretta. Then I also have the service manual Techline eSI thing on installed on my computer. With that you can just pick a car and then search the term "connector end" to get a quick list of what it all looks like for a car. My installation goes through 2005 with is just enough for the 3500 info I needed. I'm really familiar with the sensor connectors on the engine, and some of the interior ones ( I have a BCM swap under my belt - shameless site plug ). This whole engine new engine swap and changing to a Megasquirt ECU is pushing me. I already did one Megasquirt install, but I just made a foot long adapter harness to the car's OEM ECU connectors. I left a lot of wiring around that I didn't need and it was real messy. I'm trying to avoid that.
In the Beretta, it looks like C200 around the steering column is the same connector as C203 on the Fiero. Thats easy enough to find a in a junkyard.
I think I've got my wiring harness about finished on paper. It looks like I can keep the C500 connector on it's own harness apart from C203 if I move just a couple wires into C203 at pins I'm not using (coolant fan switch to HVAC connector and coolant gauge sensor to the ignition switch). I still can't believe they had 3 different coolant sensors/switches on the Fiero.
This is a list complied by PFF member Jncomutt a while back:
Bulkhead small pins Male Mouser Part #: 829-12077628 Manufacturer Part #: 12077628
Bulkhead small pins Female Mouser Part #: 829-12084200 Manufacturer Part #: 12084200
Bulkhead mid pins Male Mouser Part #: 829-12129497 Manufacturer Part #: 12129497
Bulkhead mid pins Female Mouser Part #: 829-12129493 Manufacturer Part #: 12129493
Bulkhead Large pins Male Mouser Part #: 829-12064736 Manufacturer Part #: 12064736
Bulkhead Large pins Female Mouser Part #: 829-12052456 Manufacturer Part #: 12052456
C203 Female Pins Mouser Part #: 829-12162595 Manufacturer Part #: 12162595
GM Weatherpack Male pins (Fuel Pump pigtail, MAP,etc) Mouser Part #: 829-12146501 Manufacturer Part #: 12146501
GM Weatherpack Female pins Mouser Part #: 829-12089188 Manufacturer Part #: 12089188
Most of the GM 3800 sensor pins (Cam/crank, ECT,etc) Mouser Part #: 829-12124075 Manufacturer Part #: 12124075
Injector Pins Mouser Part #: 829-12103360 Manufacturer Part #: 12103360
There is a chance that I made an error somewhere, but I think that there needs to be a correction to this list. I ordered all sizes of the male pins listed and none were the correct size for the wire to the starter solenoid. After measuring it and rechecking the part numbers, I think the part number that will work for the large pins is 12065196. It is a 4.8mm blade in my car. The large pins listed in the qutoe are a 6.3mm blade, which does not work for the starter terminal. The mid pins are a 2.8mm blade, so that doesn't work either.
There is a chance that I made an error somewhere, but I think that there needs to be a correction to this list. I ordered all sizes of the male pins listed and none were the correct size for the wire to the starter solenoid. After measuring it and rechecking the part numbers, I think the part number that will work for the large pins is 12065196. It is a 4.8mm blade in my car. The large pins listed in the qutoe are a 6.3mm blade, which does not work for the starter terminal. The mid pins are a 2.8mm blade, so that doesn't work either.
Blast from the past, but yeah, the terminals listed above are NOT correct. the mid pins on the bulkhead are not metripack 280's. so if someone has the correct pins, it would be a huge help/
this is the closest I have found so far, but it looks too wide based on the picture.
------------------ "I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."
Anyone have the PN for the bulkhead pass-through clamshell halves where the engine wiring harness goes through the firewall and into the passenger compartment?
CarQuest has metri-pack pins in packs of 5 or 10. Ooooooh, Shiny!
Anyone have the PN for the bulkhead pass-through clamshell halves where the engine wiring harness goes through the firewall and into the passenger compartment?
I could go for the clamshells as well!
I ordered 10 of each from mouser, it's about 10 times each pin I needed, it's also only about $14...
------------------ "I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."
Originally posted by ericjon262: thanks, I must have misread your post, I think I found what I need. the above linked, and the link below appear to be the correct terminal. https://www.mouser.com/Prod...IJZ52nOtSF7g0jRHE%3D
I have verified these to be the correct terminals. I have them installed in my C100. Thanks everyone for the help.
------------------ "I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."
Part number for the connector? This connector is not available without a special order.
Part number for the pins? There are several part numbers. First there are two widths of the blades. Next for each width, there are different terminals (part numbers) depending on the thickness of the wire the terminal is designed to crimp to.
I was referring to the connector bodies. I've had Metri-Pack terminal part numbers for a couple of decades now.
Finding new parts for the bulkhead pass-through would still be great. I'm kind of close to just saying F@#$ it and throwing down for a Deutsch bulkhead disconnect.
