markvrs

If your ECU has been remapped to give pops and crackles on overrun it will have been set at at a specific rev limit, normally from SAWS and K-Maps at 3000rpm

If you have pops on all rev range, just louder with more revs, most likely a fault, if pops have a clear limit, say none below 3k, then likely you have a remap. MEMS 3 as standard does not over fuel on over run without a lot of provocation.

I have been unable to ever find any for SAIC (Chinese) MG TF wiring diagrams, and have read reports of SAIC refusing requests for diagrams when asked.

RAVE manuals were a MG Rover issue and ended with MG Rover I think. (Rover Automated Viewing Environment)

There is a 2008 Workshop Manual for Chinese MG TF issued by NAC MG UK. It gives electrical repair procedures but no wiring diagrams unfortunately.

If anyone thinks thieves will do a nice clean job of opening a bonnet to take your battery or spare wheel, take a look at how they stole the headlights from a Porsche Taycan.

I think it is an error, those white wires from Fuse 23 go to the fuel circuit (into Fuel Pump Relay R190) via Header K109 not K108. Just been mislabeled.

The carfusebox.com website seems poor. just checked a few and they were all wrong. The MG TF LE500 they show is a MGF one as the diagram above, not the LE500 or later MG Rover and SAIC ones.

The best I have seen is by Roverlike at https://www.the-t-bar.com/forum/roverlike-s-guides/97846-mg-f-tf-fuse-relay-listing

If it is the front radiator fan, it should go off with the ignition. If it is permanently running with ignition on then that is likely open circuit on the ECU water temp sensor. Either sensor has failed , become unplugged or has a broken wire.

If it is the engine bay fan it should time out after 8 minutes. But needs to be really hot back there to come on, we are talking a hot summers day and a high rev thrashing. If it is on normally, then failed eng bay temp sensor.

To answer the original question, MGRover said in their Tech Tip No TT00361/5/2002

MG F, MG TF Ignition On with Engine Running 5.8 amps. Ignition Off 19 to 21milli-amps

Hi notanumber, what did I do to upset you?

Hi Cobber, totally agree with you in general with Chinese stuff, I was only referring to Simple LED failings. I imported millions £ of goods from sister factories in China and my QA/QC engineers were frequent flyers. What we loved was that when a Chinese factory made a mistake they could replicate it on every single item, LOL. Could not knock them on consistency only on quality.

On the Chinese MG TF it is appalling how bad the few extra bits that are actually Chinese are that were not designed and overseen by MGRover engineers. The "Chinese" dashboard was actually a MGRover design and spec in pipeline before MGRover collapse, and not implemented due to financial constraints at the time.

Hi santapod, something was bugging me with your photo of new cluster. The MG TF does not have 2 EML warning lights. The new one at the top is not operational on SAIC UK MG TF. Just checked in owners manual and on my car, no light. Strange