Hey all,
Seeking advice as to what can cause the bolt up trim to change.
Ive recently replaced a timing belt after receiving a bolt up trim error P1178 (timing belt was previously changed about 2 years and 20,000kms ago).
The van was running fine after the change two days ago and with some tweaking I was able to get the 'Bolt up trim' to 0 degrees using FORScan.
Now however the P1178 and MIL light have returned. I reconnected my ELM reader and bolt up trim is now varying between 1.50 degrees and 2.63 degrees.
Just wondering if anyone had any suggestions or ideas as to what's caused the change/if it's normal.
Ive replaced the belt and tensioner with a new belt, timed using the appropriate timing pegs and adjusted the bolts on the fuel pump to get it to 0 degrees initially.
The van is a Mk5 transit 2.5DI 85ps.
Thanks in advance.
Sent from my SM-G985F using Tapatalk