Hi all, I'm running out of ideas on this, so thought I'd ask for some advice.
I have a 1UZ (from a 1990 LS400) in a Hilux Surf.
The engine starts, revs and idles perfectly when stationary, but when I give it some throttle on the road, it coughs and splutters its way to around 50mph max.
I have renewed most of the engine sensors, the coils, caps, rotor arms, leads and plugs. There are no ECU codes. So far, nothing has helped.
Now, I'm swaying toward the igniters, but don't want to waste money on them if I don't need to. The only thing I could think of, by way of a test, was to unplug them (individually) to see what happened. When each was unplugged, the engine cut out completely. Does this suggest that both igniters are faulty, or does it point to another problem elsewhere?
Any help would be appreciated.
Andy
I have a 1UZ (from a 1990 LS400) in a Hilux Surf.
The engine starts, revs and idles perfectly when stationary, but when I give it some throttle on the road, it coughs and splutters its way to around 50mph max.
I have renewed most of the engine sensors, the coils, caps, rotor arms, leads and plugs. There are no ECU codes. So far, nothing has helped.
Now, I'm swaying toward the igniters, but don't want to waste money on them if I don't need to. The only thing I could think of, by way of a test, was to unplug them (individually) to see what happened. When each was unplugged, the engine cut out completely. Does this suggest that both igniters are faulty, or does it point to another problem elsewhere?
Any help would be appreciated.
Andy