I poured some seafoam into the brake booster line to clean the engine and ever since then the low tract light and the abs inop light come on and off. The low trac light will come on even if i'm stopping on a good dry street. Is it coincidence that the abs is screwing up now or could the seafoam have messed something up?

 

You disconnnected it from the brake booster first and left only the engine side connected to the manifold - correct? If not you may have tosted your booster by dumping the seafoam directly into your brake booster. If not then it might not be related to the seafoam. Check all of your ABS connections on your abs block to make sure you didn't bump or break anything off while there and check your brake fluid level to make sure it hasn't dropped too low and you have introduced air into the system.

 

I just Seafoamed my car and it didnt cause me any problems

 

It could just be a freak occurrence. If you really want peace of mind, you can get it scanned by a shop with a scanner with ABS capabilities to find out exactly what the problem is.