TLink disconnects when alky is on?

[Toady]

Greetings all and Happy Thanksgiving,

As the subject lines says, whenever my SMC kit turns on, TLink loses connection with the ECM. A friend who owns a Syclone told me he and some others had a similar issue - I'll try to dig up the link. Has anyone else had this happen on a Turbo Buick?

Thanks in advance,

 

[Razor]

May have to do with the PWM signal from the SMC. Try and connect your power straight to the battery for experimental purposes..post back if the problem went away.

Julio

 

[kenmosher]

Yep, we've had a couple folks report that the alky is propagating noise in the electrical system.... one person used a stereo noise filter on the wires going to the alky pump and solenoid and it seemed to make the problem go away.

 

[Toady]

Thanks for the replies! I found the link:
http://www.syty.net/phpBB2/viewtopic.php?t=12878&highlight=smc+capacitor
The thread speaks more about a fluctuating tach issue, but my friend was having the same problem on his Syclone, using a scantool called DataMaster, and said that using the fix(es) in the thread solved it for him. It may be a little while before I can test it - winter is not a good time to do WOT runs around here - but I will post back my results.

 

[6SENSE]

As Razor can attest I went through this dillema for quite sometime. Kind of a learning/experimenting session for us Also contacted Ken for a little insight at one point aswell.
I tested/tried every avenue until finally going with an early inclination to grab power straight from the battery (relayed) instead of through the fuse box. Held off on this for a last resort which wound up being the problem solver.
Not everyone has this problem, even though they may have the exact same alky setup. I was thinking that possibly different years/configurations may have something to do with it. In my case, the fusebox wiring config on my earlier '84 model may have had something to do with it??? Hadnt heard the 86/87 guys with the same alky setup as mine, wired the same as mine, have the same issues. Even the one person that I thought did, wound up with a different situation, with a much easier fix. It was an issue with the boost sensing harness, which needed its signal from the MAP isolated from the Alky signal from the MAP. I tried that and even completely eliminated my harness out of the pic temporarily while testing, but the problem remained.
Just a bit of info from the old noggin note book Good luck.