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What is the problem of isuzu 4HL1-2 when the RPM goes down to 1000 RPM the engine will shut off, I already check the module or computer box but its fine,also the injector is okey checked by the calibiration and they are set at 800 RPM ,,fuel line are good also the fuel presure is fine,,and the electrician already check the wiring and everything is okey but the engine still turning off when RPM goes down to 1000,, Can somebody help me to this Engine Trouble?? i just replace the piston without pulling down the engine recondiyion the cylinder head after,, the engine start the trouble just come out ,,I've already Break-in the engine for three week at1500 RPM but when i bring it down to 800or lower to it 1000 ,the engine will automatically turn off, if there is anybody encounter tjis kind of engine trouble please share me the sollution...

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Thats my problem to with my mazda atlas engine 4hl1-2 now i change ECU but SAME PROBLEM

Posted on Apr 30, 2013

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

GM Elec
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SOURCE: 1996 Olds ciera, V6, Engine dies when put in drive

Try disconnecting the electrical connector at the transmission and see if it stall when you put it in gear. You will get a service engine light, but not to worry, it will go back out once you reconnect.
By disconnecting the wire connector we can tell if it is transmission related.
Good luck, let me know.
Regards,

Posted on Mar 08, 2009

  • 10 Answers

SOURCE: Help w 1994 chevrolet truck

disconnect the batt. is your fuel pump running check fuse listen for it

Posted on May 28, 2009

mudman4300
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SOURCE: Triton V10 Engine Shudders under load

have your fuel system vacuumed out our excursion did it as well the injectors are not at fault it is the fuel lines

Posted on Aug 07, 2008

STEVIE_N_24
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SOURCE: Idle goes down when headlights turned on

Possible weak alternator output or weak battery.

Posted on Apr 01, 2009

daves944
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SOURCE: Buick Regal dying

You have a problem in the fuel pump relay circuit for sure then. I'm betting the relay, but it could be that dropping resistor.

Posted on May 11, 2009

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