Try this again.. Any help would be great

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If a car will not start as you describe in your posts, the problem is usually a bad crankshaft sensor.

Glenn
So you think i should swap out both crankshaft sensors, an see if that fixes my problem? Ive been trying to do some research an i hear usually frps doesn't go bad that often..
 

SidneyGT

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Friend of mine had a similar problem. Followed roughly the same troubleshooting path. Ended up replacing the ECU. After some research found that some of the early S197 ECU's overheated and would crack the board. Found a newer ECU at an auto wrecker. Got it re-flashed at a local shop. Back in business. Might be something worth looking into.
 
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Friend of mine had a similar problem. Followed roughly the same troubleshooting path. Ended up replacing the ECU. After some research found that some of the early S197 ECU's overheated and would crack the board. Found a newer ECU at an auto wrecker. Got it re-flashed at a local shop. Back in business. Might be something worth looking into.
Would i be losing my tune if it did end up being my ecu?
 
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Also i just noticed not sure exactly what it means ...but i noticed before starting the car, my check engine light flashes a few times then goes right back off? Is this a sign of a issue that can be tracked the problem?
 

SidneyGT

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Once the ECU has been reset to factory, upload your custom tune.
 

SpecOps13

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I saw one mention of check the fuel pressure... I just had a fuel pump assembly and Rail Pressure Sensor replaced (Because The Sensor Checked Bad On An Expensive Scan Tool...……………..) . I wanted the car to run right so used factory parts. Mine would try to start at times but never did. Now it runs Perfect.
 
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I saw one mention of check the fuel pressure... I just had a fuel pump assembly and Rail Pressure Sensor replaced (Because The Sensor Checked Bad On An Expensive Scan Tool...……………..) . I wanted the car to run right so used factory parts. Mine would try to start at times but never did. Now it runs Perfect.
That's really about my last option now, i checked my maf sensor, an my crankshaft sensor an replaced both so im hoping its gotta be my fuel pressure sensor.. hoping it is because its getting enough fuel up front.. Can a bad frps cause a no start? Is there any way to test it to make sure? But the fps is a bosch, so i feel like its been changed before but wouldn't imagine it going bad again already..
 
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Hmmm, never heard of a dynotune without use of a Flash tuner (SCT, Diablo, Etc.)
Yea im not sure honestly because i was still learning about tuning when i had my car done. should they have given me a hand-held just incase if i ever needed to have to tune redownloaded for future purposes?
 
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Update hooked up the scanner, an a code is coming up for p2111 for throttle body acuator. It does make a weird clicking, kinda like a printer i know it sounds kinda crazy but when i turn the key over before i try to crank it could my motor have gone bad? An says that my throttle body is wide open..
 
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Dino Dino Bambino

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Bingo. I think you might have finally found the problem. Open up the TB actuator and inspect the gears. It's quite likely some of the teeth are stripped and that could be the cause of the whirring sound.
The cheapest solution is to find a good used stock throttle body (with TPS and actuator attached) from eBay, Craigslist, or a junkyard.
 
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Should i replace the whole throttle body or just the side actuator motor if the teeth are still good an not broke? An aslo whats the other sensor on the left side of the throttle body whats that do?
 

RLF9409

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Should i replace the whole throttle body or just the side actuator motor if the teeth are still good an not broke? An aslo whats the other sensor on the left side of the throttle body whats that do?
Unless you have a multimeter and some technical background you are going to want to replace the whole throttlebody with the TB motor complete. I would normally say great time for an upgrade but since you recently got a tune, unless the company will give you a discount, get a stock replacement...
 

Dino Dino Bambino

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And also what's the other sensor on the left side of the throttle body? Whats does that do?

That's the throttle position sensor (TPS).
It's better to buy a replacement complete TB assembly. If that fixes your problem, remove the TPS from your old TB and keep it as a spare.
 
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That's what i was thinking about doing if i replace the whole throttle body just get the 55mm... So a faulty actuator with the throttle body can cause a no start at all? An if i replace it my car should fire right up?
 

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