here's the story, bout a week ago i install my fmic. worked great, except for the fact the hotside pipe kept blowing off. i bought some better couplers and t-clamps and just installed those today.

i also installed all new motor and tranny mounts a bout 4 days ago, but for the snub mount i bought just the 034 mount and not the bracket so when i drove the car there was some severe jerking anytime i went over ~20mph. so i ordered the bracket from 034, really loosely tightened the shroud and started the car, quite a bit of vibration, let it idle and the mount center itself, vibration went way down, finger tightened the bolts as much as i could, shut the car off, and then wrenched them completely tight. start the car again and at first it doesn't start. then i start it again and it turns over fine, but at idle the revs are bouncing up and down and i look at the dash and i have a CEL. great. bust out the vag, check the codes. (side note- the cel may have been there before, i wasn't really paying attention to the dash, but i really dont think it was there till then)

so i got p1176, p0121, and p0102.


p1176 is cause of my test pipe (tho i installed the angle block and haven't seen a CEL till now, guess its just coincidence??)

p0121 is Throttle/Pedal Pos.Sensor A Circ Range/Performance. does this mean i have to do a TB alignment? i never disconnected the battery...

p0102 is Mass or Volume Air Flow Circ Low Input. im taking it thats my MAF? why would that be triggered?


i dont get why im getting these codes now, i just did the snub mount and dont remember seeing a CEL before today...

 

could've damaged thethe downpipe and the flexpipe from the rattling. go check them out

 

nah they're both good. i dont remember seeing the CEL until that last time when i did the final tightening of the snub bracket. before then, i messed with the snub mount a number of times and drove it a couple of times, trying to diagnose the problem of the violent shaking, and never remember seeing a CEL. then i found out you NEED the 034 bracket, so the cars been sitting ever since. i dont remember seeing a CEL before then, but honestly i was more concerned with the vibration than looking for a CEL (not to mention the sight of a CEL is common to me since i drove around with one for so long cause of the testpipe) i barely noticed it before i shut the car off lol

 

i think im just gona disconnect the battery, clear the ecu's memory, do a TB alignment, and try starting the car again. the thing thats throwin me off is the MAF code. and the fact all 3 of these codes came on after doing a snub install and swapping the IC connections.

 

hahaha, just realized my MAF was disconnected. musta done that when i was messing with the headlights. lets go try this one more time...

 

roflmao

 

so i disconnected my battery for 20 min and i still have a CEL. WTF? scanned it again and got this, this time

 

the vibration over 20mph is gone. she pulls strong, but there is vibration at idle (enough to annoy me) and the revs still bounce up and down

 

just did a quick search and that p1602 code means the battery was disconnected or has a loose ground. well no ****, i disconnected it to clear the CEL, but it didn't, why is that?

 

my car is possessed or sumthin. went to take it for a drive and the CEL is magically gone, the car feels a MILLION times better. every shift is so smooth. you feel everything on the road (tally roads suck BTW) there's no more soft cushy mounts to absorb everything, i hit little bumps doing 50 around a turn and thought i was going to wipe out lol.

BUT at idle my car sucks *****. the vibration is annoying, but i can get over that. my problem now is, my revs are STILL bouncing, if im in gear its fine, if im at 40 and shift into neutral, my revs will bounce. if im sitting at a light my revs bounce. anyone know whats causing that? i noticed a little bouncing before i did all this crap to the car but now its waaay more dramatic and does it way more often.