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OK gents,
This is a posting for a friend who has a 95 D90 with a manual tranny. It’s got one of them new fangled EFI V8s and it is giving him problems. Truck has about 135K on it.
The symptoms are it starts fine, idles fine and takes off OK. As soon as he tries to accelerate she bogs horribly and will only reach about 45 mph. After running for a bit the driver’s side, and only that side CAT is glowing red. There is no check engine light and no smoke at idle or revving it in the driveway.
The plugs are a bit sooty but I put that down to the truck only doing short test runs and not being driven long enough to burn it off. This is the same on both banks.
So far he has:
- Swapped out the O2 sensors for the common Nissan swap and spliced the Rover connectors back in place. I pulled both sides and neither is sooty so I assume the heaters are working.
- Replaced the injectors. He once had one disintegrate and only that one was replaced at that time. He just replaced all 8. Before replacement he turned on the ignition and without turning the engine over we pulled the plugs. One was wet with fuel.
- He replaced the Y pipe and CATS as his first fix. There is a leak on the passenger side manifold to down pipe joint.
- He has replaced the MAF, the stepper valve on the back of the plenum and the coolant temp sensor.
I assume that if this was a timing issue that it would affect both banks and both cats would glow red. I checked the dizzy cap for tracking but could not get the rotor off to inspect the weights or the vacuum advance.
I could also do with being told where the timing marks are on this engine. I looked in the same places as my 101 carb fed V8 and there is nothing there
Any suggestions? My answer was to swap it for a series but that didn’t seem to fly.
This is a posting for a friend who has a 95 D90 with a manual tranny. It’s got one of them new fangled EFI V8s and it is giving him problems. Truck has about 135K on it.
The symptoms are it starts fine, idles fine and takes off OK. As soon as he tries to accelerate she bogs horribly and will only reach about 45 mph. After running for a bit the driver’s side, and only that side CAT is glowing red. There is no check engine light and no smoke at idle or revving it in the driveway.
The plugs are a bit sooty but I put that down to the truck only doing short test runs and not being driven long enough to burn it off. This is the same on both banks.
So far he has:
- Swapped out the O2 sensors for the common Nissan swap and spliced the Rover connectors back in place. I pulled both sides and neither is sooty so I assume the heaters are working.
- Replaced the injectors. He once had one disintegrate and only that one was replaced at that time. He just replaced all 8. Before replacement he turned on the ignition and without turning the engine over we pulled the plugs. One was wet with fuel.
- He replaced the Y pipe and CATS as his first fix. There is a leak on the passenger side manifold to down pipe joint.
- He has replaced the MAF, the stepper valve on the back of the plenum and the coolant temp sensor.
I assume that if this was a timing issue that it would affect both banks and both cats would glow red. I checked the dizzy cap for tracking but could not get the rotor off to inspect the weights or the vacuum advance.
I could also do with being told where the timing marks are on this engine. I looked in the same places as my 101 carb fed V8 and there is nothing there
Any suggestions? My answer was to swap it for a series but that didn’t seem to fly.
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