Black smoke and power loss under load on your Prado 90 diesel? Likely a clogged EGR or DPF. Here’s what to check and whether it’s safe to keep driving.
What’s Going On Under the Hood?
If your Toyota Land Cruiser Prado 90 (KZJ95 or KDJ90) feels sluggish when you accelerate or climb a hill, and you see a thick cloud of black smoke trailing behind, you’re not alone. This is a classic sign of incomplete combustion — the engine is getting too much fuel or not enough air. The most common culprits in these older diesel workhorses are a clogged EGR (Exhaust Gas Recirculation) valve or a blocked DPF (Diesel Particulate Filter). Let’s break it down.
Read the full breakdown in the Knowledge Base
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