迷局1927 电视剧:asp代码出错了：提示标准表达式中数据类型不匹配

<%
dim SmallClassName
if request("xl")="" then
set rs2=server.CreateObject("adodb.recordset")
sql2="select * from Car_pingpai where class1="& request("dl")
rs2.open sql2,conn,1,1
SmallClassName=""
sql="select * from Car_xilei where changjia_id='"&rs2("changjia_id")&"'"
else
set rs2=server.CreateObject("adodb.recordset")
sql2="select * from Car_pingpai where class2="& request("xl")
rs2.open sql2,conn,1,1
SmallClassName=rs2("id")
sql="select * from Car_xilei where changjia_id='"&rs2("changjia_id")&"'and pingpai_id='"&SmallClassName&"'"
end if

set rs=server.CreateObject("adodb.recordset")

rs.open sql,conn,1,3
%>

提示错误：Microsoft VBScript 编译器错误 错误 '800a03f6'

缺少 'End'

/iisHelp/common/500-100.asp，行242

Microsoft OLE DB Provider for ODBC Drivers 错误 '80040e07'

[Microsoft][ODBC Microsoft Access Driver] 标准表达式中数据类型不匹配。
我连接数据库这个已经成功放在conn.asp
<%

connstr="DBQ="+server.mappath("../db/date.asp")+";DefaultDir=;DRIVER={Microsoft Access Driver (*.mdb)};"
Set conn=Server.CreateObject("ADODB.CONNECTION")
conn.open connstr
%>