Hesitation?!?

[Funktown240]

I have a S1 Rb25 in my S13 for a couple of months now and im having a problem only at WOT. Doesnt matter how many lbs im boosting as soon as I mash the throttle the hesitation begins, but if I let off a little it starts to pull hard. . . . .WTF? Anybody else have had this problem? The only thing I could thing of is running a Quest alt to bring up the volts.

[rb25det250sx]

16+ years old=bad coils.

[Funktown240]

The coils are fine, inspected all of them. . .no corrosion. The car pulls hard at part throttle, why not at WOT?

[rb25det250sx]

check timing... vac/boost leaks... mine did the same thing... give the coils a coat of epoxy..let it dry for a day and set-up. it will be a cheap and easy way to really see if it is your coils..let me remind you they may look good. so did mine.. but on the inside, there 16+ years old dude.

[Funktown240]

What kind of epoxy and what do I coat?

[Neejay]

Dude, I'm having he exact same problem:

zer...boost

[rb25det250sx]

jus anytype.. get it a a autoparts store.. its a very cheap temp. fix if it is the problem.

[zmannz]

Or a set of nice used lsx coils on ebay! I bought a set locally for 100, here is a set for sale.....

http://cgi.ebay.com/ebaymotors...54399

Need adjustable dwell.

[Cjmartz2k]

The coils are fine, inspected all of them. . .no corrosion. The car pulls hard at part throttle, why not at WOT?

Looking at them means nothing. I'd bet $20 you have weak coils. You can try closing the gap on the plugs to kind of bandaid the situation, but the coils are probably the root of the problem.