Sorry long……
1990 Dodge Daytona VNT \ TII
Here is what is going on:
I have two Cal chips (TU & Shel). When the Shel chip arrived I put it in but had a crank\no start situation, put the TU chip back in & nothing (found out it was in backwards!) when I turned it around car started but I had a really high idle (2500 rpm) that would not come down. Pulled the TU chip (thought I messed it up by installing backwards) put the Shel chip back in and started ok but still had the high idle.
I tried the AIS reset method to no avail, and thought the AIS might be stuck as I was unsure of the age of it I just replaced it and cleaned up the TB good. After getting the TB back together here is what I have now:
Very hard to start barely idles when I can get it to start, I tried the resetting of the AIS procedure and I get the same low idle, tried disconnecting neg cable alone and no change.
Here is where I am at a loss:
I disconnected\re-connected BOTH the Pos & Neg cables and it started fine shoots up to 2000 rpm and then settles down after a bit to about 1300 rpm, while this is still too high (I let it idle for a while to see if it comes down further) at least it tells me the AIS is working?
The problem: Turn off – restart and I have the same low idle and stalling (like the AIS never activates) , disconnect\reconnect both pos & neg cables again and starts fine to 2000 rpm and settles back down to about 1300rpm.
So I can confirm the AIS activates ONLY once and ONLY if the pos & neg battery cable are disconnected and re-connected.
Only thing I can think of is that I messed something up inside the computer itself (not just the chip) by putting the first chip in backwards??