i woke up this moring and started my car and it would just keep cracking over it would try to start then after a while it started up and i drove it for like 5 miles ran fine as long as it wasnt under load as soon as i put any pressure on the gas it would go lean and the rev would bounce. i changed out the main relay, put in a new ing. s/w and still the problem percisted. i got it to idle and as so as there was any load it would go lean and almost dye out. and the only code i gave me was a 43 fuel system. im stumped on this one guy any help is welcom

mods:
aem cai
aem cam gear +3deg
apexi dunk cat back
msd
external blaster coil conversion
apex'i safc II
a/f meter
450's

Modified by accordmaui at 6:22 PM 6/27/2003


Modified by accordmaui at 4:44 AM 6/30/2003

 

bump for mah friend adam . . . c'mon peeps he needs some help. Got a big weekend coming up.

 

im may just be blowing smoke up your ***, but have you checked to make sure the fuel pump it okay, and the injectors arent clogged and there are no leaks in the fuel lines anywhere?

 

don't forget the filter. listen to the gas tank fill hole and have a friend turn the key over a couple of times. you should hear a roaring sound, if not check the fuse and relay.

 

*bump* all of the above are in working order any1 gona any ideas please help

 

What was the last thing you installed before you put in the new switch? 4th gens are very touchy on there wirings...meaning if somethings touching something else that it doesn't like, it'll let you know the hard way. Check your MSD wires and plugs. It sounds like you're not getting 'enough' gas. Did you check for sparks? Smell the plugs for gas?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicboisi &raquo;</TD></TR><TR><TD CLASS="quote">What was the last thing you installed before you put in the new switch? 4th gens are very touchy on there wirings...meaning if somethings touching something else that it doesn't like, it'll let you know the hard way. Check your MSD wires and plugs. It sounds like you're not getting 'enough' gas. Did you check for sparks? Smell the plugs for gas?</TD></TR></TABLE>

yeah, that's what i was thinking. it could be dropping spark under load.

 

i got spark, i got fuel, i got the car to idle but when i press on the gas pedal it bogs out any ideas

 

What about the TPS sensor? Have you checked to make sure it was working properly? Also, try hooking up a pressure guage to your fuel rail. That way you can make sure that your not dropping pressure.

 

i check the timing and put it back to spec, the TPS is fine, all the msd componets are working good, the thing i dont get is i can rev the engine up but i gota do very slowly if i get on it to hard it bogs out like it not getting air or fuel it has a hard time revin up but smooth on the rpm drop, also i can feal air coming out of the TB
any help is welcome i need my car back

 

bump

 

the problem still persistes i checked the timing with a gun it was fine and did a compression test and it was 180psi across the board

 

are you still blowing the same code? try to reset your ecu if you haven't already.

 

well o2 sensors are known to cause this "boggin'" when you decelarate too...i'd check that also. Good luck.

 

hey i had the same problem and it turned out to be the injectors have them cleaned out by a pro with the pressure injector cleaner it will run you about 150.00
but it took care of my problem.

 

Yeah, clogged injectors could defanitly cause a problem like that. Also, if your fuel pressure regulator isn't working right, the same thing could happen. Im sure you checked already, but did you make sure there isn't any vacume leaks?