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NAXJA Forum User
- Location
- Hammerspace
A lot of people have asked me about getting their alternators to co-operate with the rest of their vehicle when the PCM regulator is cooked.
Since I had to go talk to Rod anyhow (to verify his pricing, it had been a while...) I also asked him about using some other external regulator to bypass the PCM and make the alternator work properly again. I've just posted the basic instructions on using a Prestolite P8-405/P8-405A regulator to make things go again. They're on my website - with links from my Tech Index and San Jose Generator's Pricing page (since I also had to add the prices for the units.)
Note a couple of things...
1) The Prestolite units specified are listed as being "For Marine Applications" - no problem using them in automotive, since Marine specs are usually more stringent (especially on electrics, when the Coast Guard gets involved.)
2) You will get a "hard" code from OBD, and there's nothing you can do about it. If you're subject to periodic/idiotic smog inspections, you're better off (over the long haul,) in getting a replacement PCM. Sorry, but until I can get put in charge of CARB (f'r instance,) there's nothing that can be done about it for now...
3) The instructions are necessarily "basic" - you also get an instruction sheet with the regulator. However, I've covered a couple of details that Prestolite didn't, and the page is not only meant as a supplement to that instruction sheet, but it also should help you decide if you are able to do the mod anyhow.
4) The regulators are not "widely" available - they'll take some looking. I put up Rod's prices in case you can't find them anywhere else locally...
By the by - a big "Thank You" comes from Rod for all of you who have ordered from him. I'm hoping that we can get him enough volume so that I can talk him into a few other things - and maybe give Mean Green something to worry about...
Anyhow - check out the page and let me know what you think. I've written up instructions for the Prestolite P8-405 (fixed voltage) and P8-405A (adjustable voltage) regulators - I've got a little research to do before I can confidently write up instructions to work for the "ChryCo Standard" regulator from the 1970's - which is rather more widely available...
5-90
Since I had to go talk to Rod anyhow (to verify his pricing, it had been a while...) I also asked him about using some other external regulator to bypass the PCM and make the alternator work properly again. I've just posted the basic instructions on using a Prestolite P8-405/P8-405A regulator to make things go again. They're on my website - with links from my Tech Index and San Jose Generator's Pricing page (since I also had to add the prices for the units.)
Note a couple of things...
1) The Prestolite units specified are listed as being "For Marine Applications" - no problem using them in automotive, since Marine specs are usually more stringent (especially on electrics, when the Coast Guard gets involved.)
2) You will get a "hard" code from OBD, and there's nothing you can do about it. If you're subject to periodic/idiotic smog inspections, you're better off (over the long haul,) in getting a replacement PCM. Sorry, but until I can get put in charge of CARB (f'r instance,) there's nothing that can be done about it for now...
3) The instructions are necessarily "basic" - you also get an instruction sheet with the regulator. However, I've covered a couple of details that Prestolite didn't, and the page is not only meant as a supplement to that instruction sheet, but it also should help you decide if you are able to do the mod anyhow.
4) The regulators are not "widely" available - they'll take some looking. I put up Rod's prices in case you can't find them anywhere else locally...
By the by - a big "Thank You" comes from Rod for all of you who have ordered from him. I'm hoping that we can get him enough volume so that I can talk him into a few other things - and maybe give Mean Green something to worry about...
Anyhow - check out the page and let me know what you think. I've written up instructions for the Prestolite P8-405 (fixed voltage) and P8-405A (adjustable voltage) regulators - I've got a little research to do before I can confidently write up instructions to work for the "ChryCo Standard" regulator from the 1970's - which is rather more widely available...
5-90