# 91 240 help **URL:** \ **Category:** SON240sx Automotive\ **Created:** [March 17, 2004, 7:25am UTC](https://forums.speedlife.net/t/91-240-help/80728 "2004-03-17T07:25:26Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![laurieandmike](https://avatars.discourse-cdn.com/v4/letter/l/b9bd4f/32.png) [@laurieandmike](https://forums.speedlife.net/u/laurieandmike)\ **Post date:** [March 17, 2004, 7:25am UTC](https://forums.speedlife.net/t/91-240-help/80728/1 "2004-03-17T07:25:26Z")
Hello there! Ok here is my problem: I just bought a 240sx with the KA24DE engine in it. When i purchased the car I installed a new head. I got the head on, and got it running fine at idle but when I put it in drive(yes I know its an auto) and press the gas it bogs big time and sometimes stalls. It seems like it has no power whatsoever. I checked the timing it is on. What could be causing this bog? No check engine lights have come on. Could it be the fuel filter? Any ideas? The engine only has 5000kms on it. _(Edited by El Hamtaro, Please don’t make me correct your spelling.)_ ---
**Author:** ![ADAM](https://avatars.discourse-cdn.com/v4/letter/a/4af34b/32.png) [@ADAM](https://forums.speedlife.net/u/ADAM)\ **Post date:** [March 17, 2004, 8:02am UTC](https://forums.speedlife.net/t/91-240-help/80728/2 "2004-03-17T08:02:13Z")
air leak…? maf problem? cam timing off? ---
**Author:** ![spite](https://avatars.discourse-cdn.com/v4/letter/s/76d3ee/32.png) [@spite](https://forums.speedlife.net/u/spite)\ **Post date:** [March 17, 2004, 8:27am UTC](https://forums.speedlife.net/t/91-240-help/80728/3 "2004-03-17T08:27:18Z")
Bad spark plugs? Bad plug wires? Bad distributor? Head gasket not sealing? Bad injectors? ---
**Author:** ![suds240](https://avatars.discourse-cdn.com/v4/letter/s/ecccb3/32.png) [@suds240](https://forums.speedlife.net/u/suds240)\ **Post date:** [March 17, 2004, 8:35am UTC](https://forums.speedlife.net/t/91-240-help/80728/4 "2004-03-17T08:35:54Z")
Check your air intake piping for cracks/leaks? ---
**Author:** ![SHIFT\_KA24DET](https://avatars.discourse-cdn.com/v4/letter/s/b9bd4f/32.png) [@SHIFT\_KA24DET](https://forums.speedlife.net/u/SHIFT_KA24DET)\ **Post date:** [March 17, 2004, 9:30am UTC](https://forums.speedlife.net/t/91-240-help/80728/5 "2004-03-17T09:30:04Z")
Sounds like Ignition Timing, Make sure when you time it you have the MAF and Idle Switch Unplugged or else you will be timing to what the computer advances or retards it to. I know when I set my timing on my car to 15 degrees it ran like poop then when I realized I forgot to disconnect those two clips I checked the timing I was running 5 degrees After Top Dead Center :shock: So make sure you disconnect those two clips. ---
**Author:** ![SHIFT\_KA24DET](https://avatars.discourse-cdn.com/v4/letter/s/b9bd4f/32.png) [@SHIFT\_KA24DET](https://forums.speedlife.net/u/SHIFT_KA24DET)\ **Post date:** [March 17, 2004, 9:31am UTC](https://forums.speedlife.net/t/91-240-help/80728/6 "2004-03-17T09:31:07Z")
BTW laurieandmike an introduction in the new members section wouldn’t hurt. ---
**Author:** ![laurieandmike](https://avatars.discourse-cdn.com/v4/letter/l/b9bd4f/32.png) [@laurieandmike](https://forums.speedlife.net/u/laurieandmike)\ **Post date:** [March 17, 2004, 10:06am UTC](https://forums.speedlife.net/t/91-240-help/80728/7 "2004-03-17T10:06:33Z")
will do ---
**Author:** ![Black240Matt](https://avatars.discourse-cdn.com/v4/letter/b/4bbf92/32.png) [@Black240Matt](https://forums.speedlife.net/u/Black240Matt)\ **Post date:** [March 17, 2004, 4:42pm UTC](https://forums.speedlife.net/t/91-240-help/80728/8 "2004-03-17T16:42:56Z")
ide bet 5 cents and a penny candy its either ur fuel filter or ur fuel pump ---
**Author:** ![laurieandmike](https://avatars.discourse-cdn.com/v4/letter/l/b9bd4f/32.png) [@laurieandmike](https://forums.speedlife.net/u/laurieandmike)\ **Post date:** [March 17, 2004, 4:52pm UTC](https://forums.speedlife.net/t/91-240-help/80728/9 "2004-03-17T16:52:04Z")
will i put a new filter on it started and still same thing and it stalled and now it wont start got comp spark gas the plug get wet i clear it out try again get a little stumblw and nothing how do i read ecu my light on ecu dont come on at all where can i get wiring to see if there is power to ecu thanks mike ---
**Author:** ![yashin](https://avatars.discourse-cdn.com/v4/letter/y/aeb1de/32.png) [@yashin](https://forums.speedlife.net/u/yashin)\ **Post date:** [March 17, 2004, 4:58pm UTC](https://forums.speedlife.net/t/91-240-help/80728/10 "2004-03-17T16:58:08Z")
Check to make sure that all the hoses are connected, you may have a vacuum leak somewhere. It seems that the problem is either the air or the fuel. Maybe your injectors are clogged. Maybe your fuel pump is dying. If you want us to help you out a little more, try to clean up your last post. It is very difficult to understand what your trying to say. ---
**Author:** ![laurieandmike](https://avatars.discourse-cdn.com/v4/letter/l/b9bd4f/32.png) [@laurieandmike](https://forums.speedlife.net/u/laurieandmike)\ **Post date:** [March 17, 2004, 5:33pm UTC](https://forums.speedlife.net/t/91-240-help/80728/11 "2004-03-17T17:33:53Z")
ok sorry about the last post ok here is my problem i got a 91 240 ka24de when i got the car the guy put a new rebuilt ka24de from japan motor imports and needed a head because his mecanic didnt time it right and screwed the valves i get the car go get a head put it on time it right put it together and started right up it idled great the first time i took it out for a ride was yesterday it idled good but when i put it in drive and gave it gas it stumbled and wanted to quit i kept playing with it and it kept doing it i managed to go for a ride and the thing seemed like it had no power at all but it stayed going untill i tried to tramp the gas and then the same thing so today i put a new fuel filter on it started it uptried it again to see if it fixed it and it was the same.the last time i tramped the gas it stumbled and quit and i havent been able to get it running since. here is what i tried so far comp 160 all the way across i put new plugs and they were soaked with gas so i know there is gas i tried spark and there is spark (blue) the pump cuts in it cranks great i tried cleaning plugs and let cylinders clear out all i got was a stumble and then nothing umm how do i get codes from ecu? i notice that i only have 1 red led in the ecu and cant get it to light up at all please help mike ---
**Author:** ![iQuAGoD](https://avatars.discourse-cdn.com/v4/letter/i/f05b48/32.png) [@iQuAGoD](https://forums.speedlife.net/u/iQuAGoD)\ **Post date:** [March 17, 2004, 5:54pm UTC](https://forums.speedlife.net/t/91-240-help/80728/12 "2004-03-17T17:54:10Z")
The LED should only light up when a problem is present IIRC. My guess would be timing, thats what people always screw up when swapping the head. Either igniton timing because you forgot to undo the plugs like Adam mentioned, or cam timing because its not at TDC. ---
**Author:** ![imported\_chris\_240](https://avatars.discourse-cdn.com/v4/letter/i/b9e5f3/32.png) [@imported\_chris\_240](https://forums.speedlife.net/u/imported_chris_240)\ **Post date:** [March 19, 2004, 1:10pm UTC](https://forums.speedlife.net/t/91-240-help/80728/13 "2004-03-19T13:10:31Z")
My buddys auto 240 is the same, He has a rebuilt motor also. My other buddy is a mechanic at the Nissan dealership and he did a test on the computer and showed code 55 (witch is the code that tells you that nothing is wrong with your sensors). Its either your air(Clean your MAF sensor) or fuel (fuel pump mostlikely). We never figured it out yet? ---
**Author:** ![MRWmotorsports](https://avatars.discourse-cdn.com/v4/letter/m/f14d63/32.png) [@MRWmotorsports](https://forums.speedlife.net/u/MRWmotorsports)\ **Post date:** [March 19, 2004, 1:13pm UTC](https://forums.speedlife.net/t/91-240-help/80728/14 "2004-03-19T13:13:44Z")
A badly adjusted TPS could cause the symptoms you describe. FYI… you really need to do a step by step logical diagnosis. It’s very difficult to diagnose something that could have 20 possible causes remotly. -Martin. ---
**Author:** ![laurieandmike](https://avatars.discourse-cdn.com/v4/letter/l/b9bd4f/32.png) [@laurieandmike](https://forums.speedlife.net/u/laurieandmike)\ **Post date:** [March 19, 2004, 4:11pm UTC](https://forums.speedlife.net/t/91-240-help/80728/15 "2004-03-19T16:11:13Z")
got it fixed!!! :lol: :lol: :lol: when the engine was rebuilt the cam chain was off 1 tooth fixed that and wow what a diff it works great lots of power fun thanks for the help mike ---
**Author:** ![MRWmotorsports](https://avatars.discourse-cdn.com/v4/letter/m/f14d63/32.png) [@MRWmotorsports](https://forums.speedlife.net/u/MRWmotorsports)\ **Post date:** [March 20, 2004, 11:17am UTC](https://forums.speedlife.net/t/91-240-help/80728/16 "2004-03-20T11:17:30Z")
> [@laurieandmike](#): > > got it fixed!!! :lol: :lol: :lol: > when the engine was rebuilt the cam chain was off 1 tooth > fixed that and wow what a diff > it works great > lots of power fun > thanks for the help > mike 10 points to whomever it was that said valve timing!