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Discussion Starter · #1 ·
Hi - I have a 1.4 Guilietta Sprint Automatic early 2016 with less than 20K on the clock.

Just driven about 150 miles over the last couple of days and has been fine but a short local trip with a quick start at the lights in Dynamic mode and the engine warning light comes on temporarily and there's a sort of pull back from the engine (losing power/traction? not sure what it is) - the stop/start indicator warning comes on and it reverts to Normal mode.

This is the second time in a few weeks that this particular scenario has happened although I have noticed the stuttering before when taking off "aggressively" but the engine warning light never came on.

Anyone any ideas?

Chris
 

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The first thing to do would be to get the fault codes read. If the engine lights has come on a fault code should be stored.

It is hard to say what the issue might be otherwise. You can get code readers for less than £10 on ebay or you can use an ELM27 bluetooth interface (around £5 on ebay) and a free app on your phone called torque lite to show and clear the codes.
 

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Have you had the timing belt changed recently?
 

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Discussion Starter · #4 ·
No, not had the timing belt replaced and will try and locate a ELM327 reader - I did look on ebay and Amazon (UK) but there are a few worrying comments by people saying they didn't work or they've fried something on the car - anyone point me to a suitable link (uk based)? I live near Blackpool so should I take to a dealer (closest is Preston) or is there any other choices in the locale?
 

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... the engine warning light comes on temporarily and there's a sort of pull back from the engine (losing power/traction? not sure what it is) - the stop/start indicator warning comes on and it reverts to Normal mode.
When the engine warning light comes on, it automatically switches to N and switches off stop-start, so these aren't symptoms of the fault, just precautions the system takes.

As symon says, you need that fault code read.
 

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I had/have the same issue as you. I somehow got it better but not fixed entirely. I am willing to bet you are having intermittent misfires error codes. P0300 and P030X where X is the cylinder number.
I had too much oil in due to a broken and stuck dipstick when servicing. After removing the dipstick, I noticed the oil level was too high and removed some of it through the dipstick hole at a garage. After that, no more codes were logged and the CE light didn't come on (it rarely did anyway for me). But that didn't solve the problem - same abrupt loss of power under really heavy acceleration only on Dynamic.
Changed the sparkplugs, bought a new coil for cyl 1 (the code never changed from cyl 1 for me), new MAP and boost sensor and even an aftermarket performance turbo boost diverter valve add-on (from GFB).
Did I solve the problem? Not really, 2nd gear doesn't exhibit the problem anymore and 3rd and 4th the loss of power seems not as abrupt.. but still there. You can try some of the steps that haven't worked for me above, maybe you'll get lucky.
I did have a new timing belt on recently fitted and as @bazzbazz mentioned, might be worth taking a look. I am also thinking of going to a different garage to check if the 1st guy did a good job changing it and aligned everything properly. I am also thinking of taking the tedious path of trying to identify the cause for the initially logged errors (missfires). Petrol pressure / air pressure, mixture ratio, spark advance.. stuff like that.
To summarise:
  • get the codes read - i bought this ELM one FIAT ALFA DIAGNOSTIC CABLE ELM OBD2 CAN ECU *MODIFIED* Multiecuscan Fiatecuscan | eBay (not the cheapest but it works - not affiliated with that shop in any way). You will also need a yellow adapter for other stuff on your car (from anywhere really) and MultiEcuScan which I am told may exist as a torrent as well. As an Alfa owner these are a must :)
  • check oil / oil filter / multiair oil filter (important - if applicable for your 1.4)
  • check sparkplugs for oil, being wet, gap size. If you see a sparkplug being significantly different than the rest that's a sign
  • after getting the codes read and if my assumption is correct, swap the induction coil of the faulty cylinder with another one - should generate a new code or some different response. change it if necessary
If you don't plan on going prematurely grey and staying up at night on forums, and just throw money at a problem without fixing it (like I did :( ), just take it to a mechanic, preferably an alfa specialist and pay the man :)
If you find a solution, be a good sport and post back 🎩
 

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The reason I asked about timing belt being replaced is that after you do a belt replacement you are supposed to re-calibrate the Phonic Wheel/RPM Sensor. Not doing this can sometimes cause the car to go into limp mode and the Engine Light will flash.
 

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Discussion Starter · #8 ·
Got the cheap bluetooth reader now and also borrowed another from a mate (he had another with a screen but it wouldn't read anything at all) - both "working ones" (using Torque Lite) say there are no codes stored so I'm guessing its reset itself and cleared the code. I've tried recreating the issue but haven't managed it yet.

TeeTee85 - am intrigued to know how you take oil out through the dipstick hole...?

There's no record of the timing belt being replaced although that doesn't mean it wasn't at some point.

Am willing to take it to get it properly looked at - it's not really due a service but suspect the garage I bought it off (last August) who claimed they'd serviced it may not have a done a great job and I'd be better going to a specialist. I will certainly report back here with any findings/details whatever happens.
 
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