SuperRunner98

I have had the SS ESC1 in for about a month now and am having some issues. The rig has developed a tendency to stall on occasion. Usually after cruising at speed for awhile and slowing to nearly a stop, but only occasionally. There seems to be no real rhyme or reason to it. I have also noticed that, like before, it stills surges after 6 seconds in 3rd (auto) like it had only been "half" in open loop as if it was only half tricking the ECU. I wired it correctly and it definitely made a difference in the feel of the truck but this doesn't quite seem right. Has anyone else had the same problem? Do I have a defective unit?

96SR5

Sorry to ask but what is the SS ESC1? And what does it do?

SuperRunner98

It is an Electronic Signal Conditioner (ESC) made by a company called Split Second. It intercepts the signal from the O2 sensor on it's way to the ECU and tricks the ECU into going into "open loop" when the supercharger is producing boost; thus eliminating the surging caused by the computer's constant fiddling with the air/fuel mixture when under boost. Check out Gadget's site for an excellent in-depth explanation.

SuperRunner98

Anyone?

MTL_4runner

You might try PM'ing Gadget and Chris (ravencr) to see if they can help you out.

cstary

the connections for the ESC are simple, so you can isolate the problem pretty easily:O2 in, O2 out, power and ground. first, double and triple check ALL your connections. if any of these are amiss, then the O2 sensor signal won't get to the ECU and you'll stall. make sure there isn't a short further up the wire pathway too (in case you tugged on it too much when splicing).

if you're still getting the problem, bypass the O2 signal from the unit, so that it's stock. if you're still stalling, then there might be a problem with the unit, which Mark at SS will replace.

in the future, post your fuel mod questions on the www.TTORA.com forum, where there are 10X the people running fuel mods than here . . .

creed