2007年3月17日 · Had technican perform a complete scan on 1999 f-250 Thursday following, a glow plug and injector test @ the harness which I performed for what appeared to be be a hard start condition. Technican performed a KOEO and KOER test with the SNAP-ON MIDUS including a buzz test. Everything appeared within range except a code P1670 EF Curcuit Short.

1999 f350 7.3 codes P1670, will crank but very hard start, white smoke. Runs rough when it does start for about 2 minutes then no problem for the rest of the day. Glow plug relay is good, glow plugs do NOT light the test light up through the harness plug in the valve cover gasket but DO light up after I pull the harness boot and test them in place.

2020年1月29日 · '03 7.3 popping codes P0344 and P1670 Jump to Latest 5.1K views 8 replies 3 participants last post by VanMan Jan 30, 2020

P1670 code, P1670 is the exact code. I have cleared it and checked all wires from idm to the engine with everything in Jeremy | ASE, NATEF Engines and Electrical certified, EPA 608/609

2009年10月11日 · Shut it off, reprogrammed it with factory settings. Drove it a km, died, would not restart. Only code that shows up now is P1670. Replaced the CPS (old one was a grey one), with a new grey one that had been sitting in the garage for a long time. No luck, still the same thing, still the P1670 code.

2012年2月15日 · P1670 points to a problem with the electronic feedback circuits. Check for intermittent open in the following circuits: Measure resistance on (FDCS) Circuit 821 (BR/O) between IDM connector Pin 17 and PCM Test Pin 95. Measure resistance on (EF) Circuit 818 (GY/W) between IDM connector Pin 4 and PCM Test Pin 48

2022年11月19日 · Have a 2000 f250 7.3 was running in the driveway walked away it shut off and would only crank no start got p1670 Idm and pcm not talking to each other so I found this out after replaceing injectors with gaskets glow plugs hpop icp ipr cps fuel pump with filters in tank fuel bowl with filter changed oil checked wiring harness and didn’t find ...

2013年7月24日 · p1670, p1211, p0720, p0503 Jump to Latest 9.1K views 8 replies 3 participants last post by Gator5713 Jun 21, 2015

Customer: 2001 f550 powerstroke 7.3. p1670, p 1668, no electronic feedback signal detected. Ohm test idm pin 4 (circut 818 gry/wht) to battery, should be 10,000 ohm or greater, sits at 2,000 ohms. Ohm test idm pin 4 (circut 818 gry/wht) to battery, should be …

2012年7月28日 · running early 99 (7.3) and lately been having miner troubles started with low oil pressure code, replaced hpop with t-500 and havent had trouble since then ebp sensor and tube replaced both and took care of that code but now im getting p0238 and p1670 i know p0238 is boost over25 psi so im not to worried about it but the p1670 worries me a little so i removed IDM and all looks well inspected ...