Weird hesitation problem
#1
Weird hesitation problem
I've had this problem lately where when I'm in like fourth gear and floor it, once I get up to around 4k rpm it'll like hesitate once or twice and once in a while it'll do a quiet pop pop pop pop when I floor it and get to a high rpm and high boost but it has no power while making that noise. I thought maybe my injectors were maxed or something, I put in supra 305's. It idles fine, the boost stays steady at ~ 10psi no spikes or anything, it runs borderline stoich/rich (ordered my wideband, not here yet - just the narrowband afr meter now). It reminds me of when I had an alternator die but it doesn't do this all the time. Could this be the plug wires? I know it could probably be a wide range of ****. Thanks for any help in advance.
(greddy @ 10psi, supra 305cc, rx7 afm, olderguy o2 clamp, walbro 255)
(greddy @ 10psi, supra 305cc, rx7 afm, olderguy o2 clamp, walbro 255)
#2
change your plugs and plug wires first! you are running the recommended plugs for boost right? and double check your gaps!
just in case http://www.flyinmiata.com/index.php?...umber=04-56201
my car somewhat did the same thing. i put new plugs in fixed my prob.
just in case http://www.flyinmiata.com/index.php?...umber=04-56201
my car somewhat did the same thing. i put new plugs in fixed my prob.
#12
i was trying to remember what i set my injectors at on my MSPNP.....
**** i dont know what i was thinking! your car should have the 265cc in it! and hell 305 is only 50cc bigger than that! if its not your plugs and wires, next thing that throws a flag for me is injectors..........either there dirty or you need bigger
**** i dont know what i was thinking! your car should have the 265cc in it! and hell 305 is only 50cc bigger than that! if its not your plugs and wires, next thing that throws a flag for me is injectors..........either there dirty or you need bigger
#16
I replaced the plugs and that sound is gone for now, but now I have this other noise. It sounds like metal rattling but not an even rattle. Could it be detonation? I have the timing set at 6, and I run 93 octane. Do I need to retard the timing more? I had it at 8 and moved it to six, didn't change the noise. It sounds like something rattling but theres no loose ****, its not the fast vibrating of the wastegate type noise.
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Zaphod
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10-26-2018 11:00 PM