Car wasn't starting... Now no throttle.

[Meeks726]

Few nights ago, I was cruising when suddenly my car started stuttering randomly. It seems like it's cutting fuel around 2k+ rpm but not constant. No knocking sounds, hpfp readings never dropped before 1600, AFR was at mosly 9-14. I had 3/4 of gas. Then I pulled over on the side of the road, looked for leaks and checked the oil. Everything looked good. I then changed my tune to Safe Mode and continued driving, but it still stutters/cuts fuel when I go over 2k+. It seems like it doesn't do it in 1st and 2nd gear. Also, whenever it happens the CEL flashes once and goes away. Half way to my house, car shut off, and WOULDN'T START. There was no CEL on. I tried to jumpstart and push start the car, nothing. I opened the oil fill cap and had someone try to crank it, timing chain is not broken and spins. Also just had the vvt kit replaced 4k miles ago. Chain has some play but its pretty tight. Car cranks and the engine sounds healthy. Whenever I try to start the car, I smell oil and I also hear my autotech hpfp pumping. Happened at midnight so I decided to give up and left the car on the side of the road til the next day.

The next day, I went to my car to change the spark plugs using denso itv22 gapped between 0.25-0.28 and changed the fuel pump relay. NOTHING. When I changed the spark plugs, 2 of them had oil on the threads and had metal shavings. But how? I just had the valve cover gasket replaced when I had my vvt kit done and what's with the metal shavings?
Anyways, I finally decided to get the car towed to the shop.

The following day, the shop said they are replacing the crank sensor???? Why and for what tho?? They said that car is get A LOT of fuel, but no sparks. I told them to check the ignition wire bc I have a wot box installed/wired. They have found that the red wire from the wot box was loose. The guy from the shop said, "I fixed that. It runs now. But it burned out the crank senor and you have no throttle. Throttle body needs replaced." Burned out the crank sensor? What does that mean? I asked them but they never told me. How could have my throttle body went to shit?

I called again and asked how it happened, shop said "Back feed power. I can get the car to idle now. But there is no throttle at all." Huh??? What???

Minutes later during the conversation, shop said "The tac is throwing a code as soon as I clear it. And that is still messing with the ignition timing"
I then asked what the code is and what exactly is wrong with the throttle body but the guy said he's not in the shop. So I will let you guys know whenever he gets back to me.



LOOKING FOR A FRIEND. Can someone explain me everything that's going on? I'm kinda lost. What exactly happened and what caused everything to happen? Oil on 2 of the spark plugs and metal shavings mixed with the oil on them? Do you guys think the throttle body for sure needs to be replaced 100%? If so then I'm going with the CorkSport TB, agree? What do yall think about the shop and the guy??? Could the problem with the throtttle be something with the ECU? Could me changing the tune to Safe Mode affect what's going on? Please help!

[kTaLgsTo]

Just a thought on the WOTBOX.....

RED - Ignition coil power IN
ORANGE - Ignition coil power OUT
BLACK - Ground
GREEN - Clutch wire input
BLUE - Throttle position sensor or accelerator pedal position sensor input
YELLOW - RPM input

My guess is your wotbox fucked some shit up, not sure how long its been installed or who installed it.... But if you had wires coming loose on it and making/breaking connection you could go through some sensors real quickly, and or fry some other things....

[Meeks726]

Originally Posted by kTaLgsTo Just a thought on the WOTBOX..... RED - Ignition coil power IN ORANGE - Ignition coil power OUT BLACK - Ground GREEN - Clutch wire input BLUE - Throttle position sensor or accelerator pedal position sensor input YELLOW - RPM input My guess is your wotbox fucked some shit up, not sure how long its been installed or who installed it.... But if you had wires coming loose on it and making/breaking connection you could go through some sensors real quickly, and or fry some other things....

I installed it myself with help from my buddy who had it installed for about a year. We double checked and made sure all wires were wired correctly. All wires soldered and wrapped with electrical tape. Ive had the wo box installed for a week. I'm guessing somehow more wires came loose other than the RED. Most likely the BLUE wire came loose too and that caused my throttle body to take a shit? So I definitely need a new TB?

[kTaLgsTo]

I'm not saying you do for sure. I'm saying it's a theory. Your TB isn't dead, just the throttle position sensor probably, maybe....

[Meeks726]

Another question, if the problem with TB is the whole TB itself and or the TPS, should I just replace the whole TB? Does the CorkSport TB actually add power?

[Vansquish]

Originally Posted by Meeks726 Another question, if the problem with TB is the whole TB itself and or the TPS, should I just replace the whole TB? Does the CorkSport TB actually add power?

As to the second question: Unlikely without a larger turbo, a ported head and manifold, and so forth.

[Solarsurge]

That's a mega loaded question. Your turbo can only push so much air into your charge pipe and your engine can only consume so much air and fuel safely. The stock throttle is plenty large enough to feed more than enough air to most speeds, but the Corksport TB *CAN* make more power if you're heavily modified beyond the flow limits of the throttle.

[Meeks726]

Originally Posted by Solarsurge That's a mega loaded question. Your turbo can only push so much air into your charge pipe and your engine can only consume so much air and fuel safely. The stock throttle is plenty large enough to feed more than enough air to most speeds, but the Corksport TB *CAN* make more power if you're heavily modified beyond the flow limits of the throttle.

Okay, the shop said my TB needs replaced. I'm really mostly looking for a replacement, if the TB is actually the problem with my car?. The OEM cost $700+ while the CorkSport TB cost $300+. Could careless about power right now.

[Solarsurge]

Originally Posted by Meeks726 Okay, the shop said my TB needs replaced. I'm really mostly looking for a replacement, if the TB is actually the problem with my car?. The OEM cost $700+ while the CorkSport TB cost $300+. Could careless about power right now.

If you have a stock turbo, you might actually see LESS bottom-end power with a bigger TB because you are decreasing the velocity of the air without increasing the mass. So far, I've only seen dyno charts for 500+ HP cars from Corksport. If it made stock cars faster, I'm sure they'd have dyno charts for that, too, and it'd be a $1000 part. Is it worth buying just to save $400 over an OEM TB you already need to buy? Absolutely. Post your results!

[kTaLgsTo]

And the sensors in the throttle body are much cheaper than the previous two options...

[Meeks726]

What if it's not the TPS? ����

[kTaLgsTo]

Then it isn't the TPS.

unless the springs on your throttle body, or the plate actually gave out... your throttle body isn't bad. So I am not sure why a shop would tell you the whole damned thing was bad unless it had a hole in it or those auxiliary parts were broken...(which can probably still be sourced independent of the TB)

[Meeks726]

Originally Posted by kTaLgsTo Then it isn't the TPS. unless the springs on your throttle body, or the plate actually gave out... your throttle body isn't bad. So I am not sure why a shop would tell you the whole damned thing was bad unless it had a hole in it or those auxiliary parts were broken...(which can probably still be sourced independent of the TB)

I ordered the TPS. When I drop it off at the shop, I will ask them to show me what's wrong with the TB then I will let you guys know! I'll watch them replace the TPS and see if that fixes it. I hope that's it. This shop sketches me out