1985 Grand National will not start.

[Scoobum]

Stock ECM's are a dime a dozen. Go to my Youtube channel. I show how to mod it for PL.

[daveismissing]

The 60lb Seimens Deka are big -yet well characterized injectors. I would buy once

[Forzfed]

Reading from Erics forum, you can swap in an 86-87 ECM and use Powerlogger. He also recommends swapping out to an LT1 MAF and Translator. And I'd grab his street chip, if the car doesn't have one. Stock injectors are 28 lb.

Okay Thank you fir the info,

I was actually thinking of ordering the 37lb injectors from racetronix, but am still unsure. The 86-87 ECM idea is a great idea as well.....man i,m a bit confused. Are there 86-87 ECM's being sold on the site often?

Unless things have changed the biggest injector would be the 32 lbs for a stock 85 ECM.  If you convert to the 86/87 you can have your choice.  All depends on how much money you want to spend.  I would suggest an alky kit.

[Big Dawg]

Stock ECM's are a dime a dozen. Go to my Youtube channel. I show how to mod it for PL.

What's your youtube channel, thanks

[Big Dawg]

Stock ECM's are a dime a dozen. Go to my Youtube channel. I show how to mod it for PL.

You are right, they are all over Ebay.....are the ECM #1227148 from the 86/87 Century, or Oldsmobile,  98, all an option for the GN ECM swap?? Or does the ECM have to be from GN/Regal?

Thanks

[Steve Wood]

Any with that part number

[ULYCYC]

Correct any #1227148 will work. Only problem, I doubt they will come with the correct Calpac chip you will need. You will have to find  GM pn#16036503 or 16036504 as both are discontinued.  I haven't messed with ecms in a long time so Im not sure if they bypassed the calpac when they modify the ecm for injectors or powerloggers.  Good question for Eric or Steve Wood

[Steve Wood]

I thought they ran okay without the calpac but Eric is the guy for the absolute answer.

I think the problem with the calpac was that when larger injectors were used, the engine would be flooded badly with fuel.  Calpac required tps and ignition pulses from the module to let the engine barely run.  If the cal pac was not in the computer, the car would not start.  I think Eric removed the requirement of having one installed but, like I said, ask Eric to get the straight info.  He's a very nice guy.

[Big Dawg]

I thought they ran okay without the calpac but Eric is the guy for the absolute answer.

I think the problem with the calpac was that when larger injectors were used, the engine would be flooded badly with fuel.  Calpac required tps and ignition pulses from the module to let the engine barely run.  If the cal pac was not in the computer, the car would not start.  I think Eric removed the requirement of having one installed but, like I said, ask Eric to get the straight info.  He's a very nice guy.

Okay, I will send him a message on his site.

Thank you

[nocooler]

The last hotair I converted to an 86/87 ecm drove really nice. I did 3 in total. Every one ran noticeably better. These days skip the oem maf and go with the translator setup. If you don't know the status of the fuel pump, now is the time to replace it and make sure it's hot-wired. Also, pay close attention to the ground and positive battery cables if they are questionable replace them. I don't know if you can still get an adapter but changing to the later style ignition module and coil pack is nice as there are more replacement parts.  

[daveismissing]

Has anyone actually had the ECM go into limp mode? I think you can run without one, you just an error code.

[Steve Wood]

I have back in 86.  I don't believe the car will start without one in the factory config.  But, I think Eric removed that feature somewhere down the line so the car will run with, or without, one.

[Big Dawg]

Hey guys,

Here is an update,

I did a full brake job on the car and replaced the v-belts. Also did the ignition module upgrade to the 86-87 setup, man what a difference!!

I have the car running now, pretty smooth idle, took it for a drive with my son and it has some "get up and go".

I bought an ECM for $75, from ebay out of an 86 olds , 1227148.

Now I went on to the the TurboTweak site and it states on there that Eric will not be shipping international as some packaged recently have gone missing. So i guess I will wait to get a chip burnt for my setup.

My question is if I get a street chip and 60lb injectors, can the chip be tuned to run the injectors at a lower rate until I get the cars turbo upgraded, hopefully to a TA33C (very hard to locate).

Also i would need the lt1 or ls1 MAF and a Maf rranslator correct?

Thanks for all your help so far guys!!!

Am

[Steve Wood]

did you ask Eric if he considers Canada as international?

[Big Dawg]

did you ask Eric if he considers Canada as international?

Hi Steve,

I have emailed Eric, just waiting for a reply.

Thanks