Need Help
10-08-06, 02:50 PM
#1
Need Help
Motor was rebuilt about a month ago and ive managed to put about 50 miles on it but ive been having a reocuring problem that just doesnt want to go away. The car is a 10 AE . The motor is an s4 ported motor with S5 internals. The car turns on with no problems , idles fine and revs fine while in neutral but you put the car in first and try to take of it wants to die. I changed all the vacume lines, and upper and lower manifold gaskets to eliminate any posibility of vacume leaks and the problem didnt go away. Checked all the couplings on the intercooler piping and still nouthing. I had a mechanic friend of mine come by and check it out, he hooked a machine to check for codes and none popped up. We switched the Rtek chipped ecu out for one that wasnt chipped and nothing. We hooked up a wide band to it and the A/F at idle were almost 19 so we put up the fuel pressure up to about 55 psi and we got it to take off and the A/F at idle were staying at about 15 psi but once you got past 2500 rpm the A/F would drop to about low 10's. So he told me i might have a bad AFM and my primary injectors might be dirty. I took out all the injectors and had them cleaned. When i put them back on and dropped the Fuel pressure back down to about 35 psi the car was running ok But still felt kind of held up. The AFM i got from a forum member and i put it on yesterday morning and the car was still running the same OK but still kind of held up. Last night i went to take the car for a drive to try to get some miles on it and the problem started again. It turned on fine idled fine reved fine while in Neutral but when i went to take of it wanted to die. Can some one lead me in any direction that might help me solve this problem.
10-09-06, 03:26 PM
#5
Former Moderator. RIP Icemark.
who did the clutch/tranny work?? if the clutch is in and you put it in any gear (while still holding the clutch in) does it stall or only in first???
and your bumps have been deleted. Bumps are forbidden here in the 2nd gen RX-7 technical section
and your bumps have been deleted. Bumps are forbidden here in the 2nd gen RX-7 technical section
10-09-06, 07:59 PM
#7
Former Moderator. RIP Icemark.
who did the clutch/tranny work?? if the clutch is in and you put it in any gear (while still holding the clutch in) does it stall or only in first???
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10-24-06, 10:13 PM
#8
Just wanted to update incase someone comes across a problem like this. After changing a ton of things and getting it to some what run with out dying out when the car would start to go into boost it would break up really bad. I finally gave in and decided to take it to a local rotary performance shop. Turns out that the CAS was bad and kept messing up one of my coils so a new CAS and coil later and the car runs like a champ. So if any of you guys are having these kind of symptoms its a good place to look. Thanks to all of you that replied for all of your advice.