Pages: [1]
Author Topic: Me7.5 A3 1.8T ARZ Cranks over, doesnt start after flashing  (Read 900 times)
trndiik
Newbie
*

Karma: +0/-0
Offline Offline

Posts: 2


« on: July 30, 2023, 08:42:49 PM »

Sup fellas, me and a friend put a “hard cut” limiter on his narrowband me7.5 and it worked like a charm for around 30 min and then he shut it off. Once we decided to go get some food it just cranked and wouldn’t start. Mpps kept saying “ecu not found”(it did this before but then it worked after cycling the ignition and restarting the program a couple of times). Could this be a bricked ecu? We hope it’s just the fuel pump relay since it doesn’t prime the pump when the key is turned but that also could be that the relay isn’t receiving any signal from the ecu. Any advice is golden Smiley thanks

(Thought it wouldn’t do anything to the ecu since it’s not like LC on a 512kb file where you have to basically add code, I just did ignition cut at 6500-6550rpm)
Logged
fknbrkn
Hero Member
*****

Karma: +177/-18
Offline Offline

Posts: 1403


mk4 1.8T AUM


« Reply #1 on: July 30, 2023, 09:19:05 PM »

You forget to fix checksums

Disconnect the battery, turn ignition on, connect battery after few minutes and shortly try to write a stock
Try this for a few times and if no luck, only boot mode at bench will recover that
Logged
trndiik
Newbie
*

Karma: +0/-0
Offline Offline

Posts: 2


« Reply #2 on: July 31, 2023, 07:02:40 AM »

So disconnect negative terminal, turn ignition on, plug mpps in, put the negative terminal back on and try stock map?
Logged
fknbrkn
Hero Member
*****

Karma: +177/-18
Offline Offline

Posts: 1403


mk4 1.8T AUM


« Reply #3 on: July 31, 2023, 08:59:43 AM »

Idk about mpps in that case but this trick sometimes works with nef
The key is to made is quick as possible after plug battery so leave dongle in obd port
Logged
xTeooo
Newbie
*

Karma: +0/-1
Offline Offline

Posts: 6


« Reply #4 on: August 02, 2023, 03:05:52 PM »

post ur bin here ill check it
Logged
Pages: [1]
  Print  
 
Jump to:  

Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Page created in 0.014 seconds with 16 queries. (Pretty URLs adds 0s, 0q)