OK some back story. I installed my FMIC and removed emissions on my 10th AE. I had to move my leading coil for the intercooler pipe since I kept my battery, PS and AC. I had a similar problem before and after a TPS adjustment it went away. But the adjustment isnt working, nor is a replacement TPS sensor (both had a good ohm range).

Here is the issue, first gear (cold and warm) car pulls just fine. Second gear (cold or warm) if i smash the pedal, it bogs out and smells like fuel. I let off the gas and it ignites the unburnt fuel. So TLR - Full throttle low rpm pedal smash = bog.

Im going to replace both coil sets tomorrow morning and see if that fixes the issue but I figured i would post and see what ideas everyone had.

 

If you moved the leading, it is VERY important to make sure it grounds properly.

 

ya i re grounded it. not the issue. i did find out that it does it in first gear as well. just only on an incline (increased engine load). so i suppose its load related

 

Have you checked the Boost Sensor? Brown/Red wire should read 2.3 to 2.7 volts w/key to on . The vacuum hose should be disconnected and capped for this test.

 

by capped can i stick my finger over it and look at the reading? (im assuming you mean the sensor side itself capped)

 

The rubber hose itself would need to be capped/plugged/fingered.

 

engine running?

 

Key to on, engine off.

 

2.268V key on engine off. My ground has an ohm reading of .7 on that sensor. Seems high?

 

You might want to disconnect the TPS and disconnect the hose to the Boost Sensor and w/the hose plugged take it for a short drive and see if it behaves differently.

 

ill give it a whirl, whats this going to check? safe to boost during this endeavour?

 

Well, you said previously that the car acted better after a TPS adjustment but this trick doesn't work anymore so by doing as suggested you will be placing the car under load and this might be your problem as you also mentioned that driving up hill in 1st gear was problematic as well. This won't hurt your car as all it will do is simulate load and this procedure is taken straight from the FSM.

 

car wont even start like that, too much fuel. so that brings the question to mind of.. will an injector fail in that its either ONLY on or off? (0 or 100 duty cycle). It seems like when the secondary injectors come online theyre flooding out the car. Only other thing I will try tomorrow at work is to smoke the intake and see if i have any big leaks

 

You could always start the car w/the TPS connected then unplug it but anyways it seems like bogging issues related to fuel are ones which there isn't enough fuel rather than too much fuel but I could be wrong on this. The fuel pump, fuel pressure, fuel filter, fuel pump relay and resistor, FPR could all be contributing to your problem as well as a restrictive exhaust perhaps.

 

exhaust is free. pump is new. filter is relatively new. and the fuel smell is profuse under the hood when it does this. hence the too much fuel im thinkin. ive got a set of spare injectors ill throw in the secondary slot. question is do i put in the 680s or the 850s (probably the 680s)

 

did you removed the secondary throttle plates when you removed the emissions?

 

no.

 

UPDATE - Replaced secondary injectors and AFM with known working units, same issue. This whole time it does sort of sound like there MAY be an intake leak under the hood.. would that cause this? Im going to smoke it tomorrow and swap out the primary injectors. Also the IAT sensor broke from all the removal/reinstallation of the UIM but I dont figure it not being plugged in would cause this much of an issue.

 

Have you tired to drive the car with the tps unplugged, but boost sensor plugged in.

 

starts fine, but when you push the gas it acts like the MAF is disconnected and just kinda dies until i let off the throttle. then it goes back to normal

 

finally had time to smoke the intake. Heres the breakdown lol...

Big leak at the turbo inlet (fixed by tightening clamp more)
IAT sensor is leaking around the black plastic portion (pretty bad leak)
Thermowax gasket to throttlebody is leaking very bad
Primary injectors are leaking (seats are probably dry rot and allowing them to slide up and down).

Im fairly confident fixing the primary injector leak will fix my bog issue. If my thought process is correct sicne this big leak is AFTER waht the boost sensor sees for intake pressure its adding.. say 8psi worth of fuel and the actual chamber may only have 2.

So to sum things up.. smoke your intakes. Find those small stupid leaks!

 

** FIXED **

Both my 3800rpm stumple is now gone, as well as every issue i had with the vehicle. Just need to readjust the TPS sensor and we are mint. Also put the a/c belt back on and charged it.. oh its so nice to have a well working machine again.