Nistune Forums

Thanks for the tips guys. Got it to idle pretty steady, just bounces around by 100-200 rpm's. My timing is way off from my head-gasket job, so I gotta fix it before I can get idle perfect, but I had to fix idle a little before I could do timing.. My dizzy is turned all the way ccw and I'm still like...

if you set your idle speed rpm stupidly low then the ECU wont adjust the timing further when the TPS switch voltage senses it is idle So if I set it at like 100 rpm's the ECU won't mess with timing, but the car will still idle at like 1000rpm's, if that's what I set the Throttle Body plate screw at...

I have a ka24de S13 240sx with nistune. I took the intake manifold off and welded up all the holes on the intake manifold except for FPR vacuum line and brake booster line. Well I regret welding up the IACV, guess I got carried away a little. I have opened my throttle plate a little with the set scr...

Disclaimer: I'm NA, my nissan isn't my daily driver and I can get a used ka24de for $400 easily so I'm not as cautious as I should be. I'm a amateur, but from everything I've read with Nissan tuners they either disable it, or they use the knock sensor with an external op-amp. For me the stock knock ...

My friend and I finished the head-gasket job today. Didn't fire up at first, but after he messed with the dizzy for 10-20 minute, and then it fired up and ran great. Still gotta get the timing 100% correct, and need to buy a timing light, but at least it's running again, first time in a month or so....

#1. I used a Fuel pressure gauge. Fuel Pressure is at factory Spec. 44PSI when fuel pump is primed, and 44PSI while cranking. Still won't start. #2. I got extra intake manifold off craigslist. Blocked off all emissions stuff. Use idle set screw to set idle. All new gasket, used torque wrench and FS...

#1. I used a Fuel pressure gauge. Fuel Pressure is at factory Spec. 44PSI when fuel pump is primed, and 44PSI while cranking. Still won't start. #2. I got extra intake manifold off craigslist. Blocked off all emissions stuff. Use idle set screw to set idle. All new gasket, used torque wrench and FSM...

I finally got the manifold off today. There were some spots on the intake-> head gasket that indeed looked like they had fluids all the way though the gasket, as well as the fact that the coolant part of the gasket came off in two pieces. The lower intake manifold gasket also looked like it might ha...

I was out of town at a track day at Thunderhill (in my VW R32 since my 240sx is down.) When I got back, my fuel pressure gauge was waiting for me. I got a new battery today, and all the proper fittings to hook up the fuel pressure gauge to the line. Fuel pressure checked out, 44 PSI. Removed plugs o...

Did a compression test today. All cylinders are within spec and no real compression difference between then. I'm thinking a intake manifold gasket is leaking. The intake manifold is 2 parts on my car so there are two gaskets that could be leaking. Car idles fine when cold, but when it warms up it ru...

Well I found some coolant on the floor this morning where there shouldn't be any. Its on the side of the engine with no coolant lines at all.

I'm thinking headgasket, got a friend coming over with a compression tester soon.

kenbam wrote:Just because it hasnt logged a code for the AFM, doesnt mean its not causing the problem. I had a very similar problem with my rb20, sprayed some carb clean over the hot wire and it was as good as gold.

I swapped out to a different MAF and I'm still having these problems.

Well it isn't fuel. I clamped the return line and I'm having the same problems. Friend and I checked out spark and everything is cool. Engine is running really lean now and doesn't even like to idle. We are pretty sure there is a massive vacuum link in the intake area some where, but we've sprayed c...

Remember higher the load, higher the boost, you could be flaming out you plugs, check plug gaps etc, spark could still be the issue, don't rule it out... Roger. I'm NA so it's not as large of as difference but yeah I won't forget spark promise. I did replace 3/4 spark plugs with new ones. Gapped th...

a missfire will read a lean condition due to oxygen still being present, so dont rule spark out completely Cool I didn't know that. I'm pretty sure it's not spark though since it only does it under load, and the higher the load the worse the bog. It also seems like the higher the fuel pressure woul...