The V8 Owners Forum -

Update The problem was eventually traced to defective / incorrect / substandard injector seals. Following the last post (on the 16th August) I decided to try and check for a leak by squirting differential oil around the seals between the injectors & intake manifold (as suggested by Stevieturbo)....

Dave, There are tables in the Link software to adjust the injector pulse width, one is to compensate for changes in battery voltage and the other to add time to short pulse width according to the injector manufacturer's table. These adjustments are however applied to all injectors, there is no (or a...

. . . If you had wideband sensors checking what that nice simple carb does, you'd likely find similar errors. :D With the problem being most obvious at low demand, could you simply have a leaking injector? Does the rail hold pressure, engine stopped? Dave, Yes, the fuel rail holds pressure pretty w...

With such a vast error between banks, wondering if a ColourTune would show which cylinder is causing the problem - if the plugs ain't showing it? Are the pulse widths from all the drivers near enough the same at a constant idle speed? Dave, Colourtune might be an option to help identify the cause, ...

Just to throw it in the mix! Have you checked the spark plugs on both sides and are they properly gapped? Ian Ian, Thank you for your response, yes the plugs were checked and properly gapped but are the original plugs that came with the engine so may be due replacement. Envious of your GT40, the en...

On an RV8, the difference between 15:1 and 13.5:1 would be very noticeable indeed at idle. You'd not get a reliable idle at a sensible speed at 15:1. Is the Link setup batch injection? If so a dual band scope would be useful to see if the injector drive pulses are the same to both banks. Assuming y...

ChrisJC wrote: ↑Thu Aug 13, 2020 6:05 am Is there an air leak on the intake side?

Chris.

Chris,

Not that I am aware of, no noises or other indication of a leak. if it wasn't for the lambda readings I would have said it was running sweetly!

Regards,
Ian

Firstly...so you have 2 independent widebands ? And you are viewing or logging the info from them on either Logworks, or via the serial data stream ? I simply would not trust the analogue outputs on the Innovate, unless you have actually manually tested and verified it's output voltages right throu...

Hi, I am currently fitting and early (1992) 1UZ-Fe into a kit car to replace a Rover V8 and have found that the AFR is different between the two banks when carrying out the initial fuel set up. The engine is out of a Soarer and has had a COP upgrade using Honda K20 coils and is controlled by a Link ...