# car running bad **URL:** \ **Category:** SON240sx Automotive\ **Created:** [October 6, 2007, 2:14pm UTC](https://forums.speedlife.net/t/car-running-bad/110054 "2007-10-06T14:14:26Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 6, 2007, 2:14pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/1 "2007-10-06T14:14:26Z")
ithink my maf is messed up my car shut off on me today, when i was driving, i got home started checking everything , i stoped getting fuel so i started checking fuses so i found a 7.5amp fuse that was bad under the hood, car is a 95 240 witha redtop. i changed the fuse and started getting fuel ( i had the rail off the injectors werent spraying at first but after changing the fuse they started spraying.) Then i started the car and it ran like shitt, so i disconected the maf ran much better. took the mafsensor off and sprayed it with some throttle body cleaner let it dry up, and also i rewired just incase the connection may have been bad, first time i messed up the wiring. pluged the maf back up ran like crap and pulled the plug out like right away, then i wired it correctly and it still ran like shit witht the maf sensor connected. im pritty sure the maf is bad but i would like some imput because it could be something else. ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 6, 2007, 2:32pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/2 "2007-10-06T14:32:23Z")
i re wired again, i noticed i had the signal wire the white 1 from the maf wired to the ground, and ground wire to signal so now when the maf i runs fine on idle but when i drive it starts to mess up and stuff. and the idle is still worse than it is when the maf is disconnected. it has a little miss. o yea and everything esle is arlight because when i was diagnosing i checked everything spark plugs coils, compression. ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 6, 2007, 2:38pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/3 "2007-10-06T14:38:15Z")
after re wiring the maf i just drove the car right now it runns but maf not working properly, it bacfires after a little while, like while im on the gas. ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 6, 2007, 4:38pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/4 "2007-10-06T16:38:04Z")
car runs like a intercooler pipe is off but it isnt i checked. ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 6, 2007, 4:40pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/5 "2007-10-06T16:40:47Z")
im using a ka24de mass airflow sensor on my s13 sr, i was told it doesnt work 2 day but it worked for like 4 months now. ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 6, 2007, 5:15pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/6 "2007-10-06T17:15:32Z")
i had put a 10amp fuse where the 7.5 had blown and noticed that my battery kept getting drained then i found a7.5 fuse and put it in and they keep blowing. maybe a short somewhere i checked my wiring it was ok , could it be a relay. im starting to think that it wasnt the maf after all. ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 6, 2007, 6:56pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/7 "2007-10-06T18:56:55Z")
alright now i took care of the shortage that was blowing the fuse, the fuse has something to do with the fuel , it cuts off the injectors if it is out. i dont no what fuse it is because the covers diagram is old and worn out. alright so sinse i got that fixed i drove tha car again, and still it backfires and as soon as i press the pedle over 25% it starts to like miss and backfires liek loud gunshot loud. sounds cool but its a problem. so guys and girls please inputttttt. need the car its my daily driver ---
**Author:** ![fastback240](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fastback240/32/5591_2.png) [@fastback240](https://forums.speedlife.net/u/fastback240)\ **Post date:** [October 6, 2007, 7:21pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/8 "2007-10-06T19:21:01Z")
wow looks like u solved it all yourself. what a champ. good work funny how that works, start explaneing a problem to someone and then u relise what it is and then you can try somthing else to fix it… happens to me all the time. ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 6, 2007, 10:07pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/9 "2007-10-06T22:07:41Z")
i solved part of it but it still hesitates when going 25%+ on the throttle and backfires loud, some drunk guy in my area thought i was doing it on purpose old guy, he started yelling at me lol i couldnt understand anything he was saying, then he was like im gonna put you in jail so i started laughing and he got more pissed so then i was just like uno what get the fuck off of my property. 2 other guys came and took him and they where like just say sorry i was like for what trying to fix my car. ---
**Author:** ![xyz](https://avatars.discourse-cdn.com/v4/letter/x/b5a626/32.png) [@xyz](https://forums.speedlife.net/u/xyz)\ **Post date:** [October 6, 2007, 11:06pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/10 "2007-10-06T23:06:20Z")
Lolllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll!! Sorry to bother u but thts funnyy ---
**Author:** ![minimum](https://avatars.discourse-cdn.com/v4/letter/m/e47774/32.png) [@minimum](https://forums.speedlife.net/u/minimum)\ **Post date:** [October 7, 2007, 6:51am UTC](https://forums.speedlife.net/t/car-running-bad/110054/11 "2007-10-07T06:51:44Z")
i dont think that the de maf works with the sr. im pretty sure that you need a sohc maf. i had a problem with my maf, before i got a plug for it. the wires kept falling off, and sometimes it would idle fine, but when i hit the gas it be really shaky like a huge air leak. just kept switching wires till it ran ok. ---
**Author:** ![fastback240](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fastback240/32/5591_2.png) [@fastback240](https://forums.speedlife.net/u/fastback240)\ **Post date:** [October 7, 2007, 9:35am UTC](https://forums.speedlife.net/t/car-running-bad/110054/12 "2007-10-07T09:35:09Z")
> [@Date/things to do ideas...](https://forums.speedlife.net/t/date-things-to-do-ideas/14389/3): > > i solved part of it but it still hesitates when going 25%+ on the throttle and backfires loud, some drunk guy in my area thought i was doing it on purpose old guy, he started yelling at me lol i couldnt understand anything he was saying, then he was like im gonna put you in jail so i started laughing and he got more pissed so then i was just like uno what get the fuck off of my property. 2 other guys came and took him and they where like just say sorry i was like for what trying to fix my car. yeah almost the same thing happend to me yesterday, i was standing there waiting for matt to come, and when he arived he dicided to do a little brake torque coming up my driveway so the ppl across the street come out and say u know theres kids in the area? he replys with sorry i dident see any in his driveway in the pouring down rain, then they say do you know the by laws on how loud a car is? and he replys again yeah i get tickets for them all the time. needless to say they were shocked and went inside and when the guy who lives beside me came in in his loud shitfire i ran out and said “do you know the bylaws on how loud a car shoud be?” he just started laughing and said what are you fucked? i thought it was funny i guess you had to be there… i love nabors ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 7, 2007, 9:40am UTC](https://forums.speedlife.net/t/car-running-bad/110054/13 "2007-10-07T09:40:21Z")
lol yea man people are crazy im pritty sure i see a few cars once in a hwile infront of his house mustangs a bunch of reffs with them and he seems cool with them. but the back fire from my car scared the shit out him he came running i oculdnt keep a straight face it was halarious. ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 7, 2007, 9:41am UTC](https://forums.speedlife.net/t/car-running-bad/110054/14 "2007-10-07T09:41:22Z")
any one in brampton willing to let me use there maf for like 5 min i wana make sure that is the problem, ino i have to change myns though. ---
**Author:** ![xyz](https://avatars.discourse-cdn.com/v4/letter/x/b5a626/32.png) [@xyz](https://forums.speedlife.net/u/xyz)\ **Post date:** [October 7, 2007, 9:53am UTC](https://forums.speedlife.net/t/car-running-bad/110054/15 "2007-10-07T09:53:21Z")
> [@dsm guys......awd question](https://forums.speedlife.net/t/dsm-guys-awd-question/14385/3): > > yeah almost the same thing happend to me yesterday, i was standing there waiting for matt to come, and when he arived he dicided to do a little brake torque coming up my driveway so the ppl across the street come out and say u know theres kids in the area? he replys with sorry i dident see any in his driveway in the pouring down rain, then they say do you know the by laws on how loud a car is? and he replys again yeah i get tickets for them all the time. needless to say they were shocked and went inside and when the guy who lives beside me came in in his loud shitfire i ran out and said “do you know the bylaws on how loud a car shoud be?” he just started laughing and said what are you fucked? i thought it was funny i guess you had to be there… i love nabors well it is off topic but u quoted him nd i recieved email y so :S ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 7, 2007, 12:45pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/16 "2007-10-07T12:45:15Z")
my plug for the maf is messed up the wire that sends a signal to the ecu is messed up it had a cut in it when i pulled on it alittle ir broke. so i decided to wire it direct, by poping the cover ontop of the maf. didnt back fire any more still strugled as i pressed the throttle but not as much, actually hit 10 psi unlike before whre it wouldnt go past 5 because it struggled so badly. ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 8, 2007, 4:12pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/17 "2007-10-08T16:12:11Z")
alright i got a mass air flow sensor for a sr installed it and now the car rus much better, for 1 run it bogged when i hit ilke 12 psi, and then when i went again itstarted bogging at like 5 psi again. give me some suggestions guys ive been trying to fix this for a while its starting to piss me off now. ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 8, 2007, 4:15pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/18 "2007-10-08T16:15:25Z")
when the 7.5amp fuse blew in the start of all this mess, i had a drain and every time id replace the fuse it would blow, so then i pulled the main relay for the computer out and put it back in the drain went away, do u guys think the relay is messed up. i dont think its my wiring any more i soldered teh wires this time. ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 8, 2007, 5:57pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/19 "2007-10-08T17:57:17Z")
im gonna try changing the relay i dont even hear it click or anything, maybe when i drive and it prolly messes up, because when its in idle everything works perfect now the relay must be cutting off the maf power or something. ive checked everything else. ---
**Author:** ![rex\_thugs](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rex_thugs/32/5598_2.png) [@rex\_thugs](https://forums.speedlife.net/u/rex_thugs)\ **Post date:** [October 9, 2007, 4:55pm UTC](https://forums.speedlife.net/t/car-running-bad/110054/20 "2007-10-09T16:55:04Z")
still no luck, i swapped the fuel pump with me dohc fuel pump same thing so swaped my warlbro back in, i tried changing my fpr with another 1 i had same thing still happens, i think the ka24e maf i baught is messed up aswell because i even tried wiring with a new wire from the ecu but still did the same thing. the ka24e maf works great on idle but 1ns i got like more then 25% throttle it messes up. i also took my bumper off and checked my intercooler properly tightened the clamps even more. guys hellppp meee out some 1 let me use there working maf to see if the 1 i have really is messed up. [Next page](https://forums.speedlife.net/t/car-running-bad/110054.md?page=2)