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RedI'm being told 165psi compression is good, the vacuum readings this morning was a stable 50, it does however fluctuate in idle causing the vacuum gauge to jump between 45 and 50, I'm being told it's fuel related
I'm being told 165psi compression is good, the vacuum readings this morning was a stable 50, it does however fluctuate in idle causing the vacuum gauge to jump between 45 and 50, I'm being told it's fuel related
So i looked over everything i have replaced, repaired etc. And i think I might either be blind or more stupid than i thought, it appears to me that the timing marks on the cams are not 100% lined up but i can't figure out how to post pictures on here to have my opinion confirmed.
My timing marks on the cams aren't tooth to tooth either
Well, as I posted previously the (dry) compression on my 13 year old '05 is 200+, so I can't go along with 165 being 'good'. But it's obviously your decision how to continue troubleshooting the issue with this vehicle.Originally Posted by Z3r0x01
Sorry for sounding like a know it all before, i may have found the issue, when the crankshaft mark is lined up, the intake cam is perfect, exhaust cam most definitely is off 1 tooth. Would this give the lower compression reading?
I can't say for certain that 1 tooth off would cause lower compression, but it certainly has a highly likely probability.
In the midst of all of this, i have taken the time to order a fuel pressure tester for myself, and i am going to invest into a better obd2 reader so that i can continue doing my own repairs.
Timing is fixed, car starts and runs alot better, plugs were all burning black as coal, still the p0300, fuel system still going into ol_fault, thinking fuel system issue, thoughts?
I'd want to see what the compression and vacuum tests show now, before doing anything else.
Also, what should the normal readings for tps and map sensor be when idling and revving? My map sits around 9.8-10.6 and tps is sitting at 12.2.
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