What are the timing specifications for a 1993 Jeep Wrangler 4cylinder 5sp fuel injection?
The Engine Control Module sets timing and fuel mixture. It is varied electronically based on driving conditions. After market chip or programming unts may vary the factory settings to increase performance.
The fuel injection timing in a gas engine will not affect the mean effective pressure. In a diesel engine is the principal factor managing the bmep. In a gas engine the fuel injection timing have to match the events of valve opening or tuned induction but have nothing to do with mean effective pressure.
I have a 98 Jeep Wrangler that kept generating a timing problem codes, after changing the crank sensor and timing module in the top of the distributor, I took it in and they changed out the distributor and stopped the check engine light from coming on. The CPU timing specifications are so tight that a little wear in the distributor shaft starts throwing codes out. It ran fine just kept throwing codes, a rebuilt distributor…