Jetta TFSI Not starting

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Sonic16
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Jetta TFSI Not starting

Post by Sonic16 »

As the topic reads, 2007 Jetta 5 TFSI wont start, engine cranks but doesnt fire.

Thought it was the coil packs so i bought a new set this morning but no change.

Any good mech's in the West rand JHB?
Sitting low and riding hard.

05' Black Magic G5 Gti
98' Polo Classic 1.8.
94 CTI
92 Jetta 2 2.0 16V
89 Jetta 2 1.8 16v
98 Sonic 1.6
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Sean Trollope
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Car Make: VW. Hyundai.
Car Model: Citi golf. Hyundai i10

Re: Jetta TFSI Not starting

Post by Sean Trollope »

I know a guy in Hartbeespoot who can help you buy I'd imagine it's a bit far

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panic-mechanic
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Re: Jetta TFSI Not starting

Post by panic-mechanic »

Without some diagnostic you will guess at a lot of stuff before getting to the correct item.
It is EXTREMELY unlikely that all 4 coils will fail at the same time.
But a bigger likelyhood are the following
1) fuel pump or relay
2) engine speed pickup also called crank angle sensor depending on who you talk to
3) cam position sensor
4) main ecu relay
5) ecu itself. Not uncommon on those. Had it with my own a4 DTM. Put it in the garage - next day no start. It simply would not open the injectors. Replaced ecu and there you go.

But you basically have to start by plugging in a diagnostic tool, see if there is rpm, crank and cam. Is there fuel presure, low side and high side. And is the power to the unit. Ie can you even see the ecu.

Apparently vagcspeccentre is highly recommended that side hey dazza
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10

Perfect Power dealer. I do dyno tuning.
Dale
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Re: Jetta TFSI Not starting

Post by Dale »

Where in the west rand? I Can help with a scan
Sonic16
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Re: Jetta TFSI Not starting

Post by Sonic16 »

Howzit, thanks for feedback. I am on Florida North just of Gordon RD.

PM me your number will give you a call I need to get it scanned

Sent from my MHA-L29 using Tapatalk
Sitting low and riding hard.

05' Black Magic G5 Gti
98' Polo Classic 1.8.
94 CTI
92 Jetta 2 2.0 16V
89 Jetta 2 1.8 16v
98 Sonic 1.6
Sonic16
Cadet
Posts: 207
Registered for: 18 years

Re: Jetta TFSI Not starting

Post by Sonic16 »

So the car was towed to VAG Motorsport. So far we can see the fueling is an issue. Holding thumbs for something not costly...

Sent from my MHA-L29 using Tapatalk
Sitting low and riding hard.

05' Black Magic G5 Gti
98' Polo Classic 1.8.
94 CTI
92 Jetta 2 2.0 16V
89 Jetta 2 1.8 16v
98 Sonic 1.6
Sonic16
Cadet
Posts: 207
Registered for: 18 years

Re: Jetta TFSI Not starting

Post by Sonic16 »

Just to close of this thread, issue was ecu. Repaired and car was back to normal.

Sent from my MHA-L29 using Tapatalk
Sitting low and riding hard.

05' Black Magic G5 Gti
98' Polo Classic 1.8.
94 CTI
92 Jetta 2 2.0 16V
89 Jetta 2 1.8 16v
98 Sonic 1.6
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