Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - Built SR20 blacktop holding itself at 5k RPM

J_raw · 03-14-2019, 06:48 AM

Drove car for a 2 days after getting it out of the garage on a nice day for first time since winter. 3rd day of driving while heading to the car started idling at 2.2-2600 rpm, hunting. Limped it home and checked TPS voltage which was good. Checked maf by unplugging and car wanted to die so figured that was good. After a while of testing it went away and I took it for a spin in the neighborhood. This is when things went awful, car now revs to 5k regardless of throttle input. Ordered a new IACV gasket which is what I’ll pull and clean and test next, ordered an CTS aswell. Not finding any vacuum leaks. Any other suggestions? Am I clearly missing something?Mod list here

* S13 SR20DET Black top
* Block machined by D&D Engines
* 86.5mm CP Pistons
* Manley rods
* King main and rod bearings
* Tomei oil pan
* ARP headstuds
* Tomei headgasket
* Brian Crower 272 cams
* New Springs and retainers
* New Rocker arm stoppers
* New timing chain
* New chain tensioner
* Tomei 740cc injectors
* Walboro fuel pump
* Greedy style intake manifold
* ISR FMIC kit
* Flex-a-life dual fans
* Tomei exhaust manifold
* Garrett GTX2867r turbo

Nismotronic tuned.

Car has run great for some 8k+ miles now. Drove it all last season.

03-14-2019, 06:48 AM	#1
J_raw Leaky Injector Join Date: Feb 2018 Location: Cincinnati Ohio Posts: 52 Trader Rating: (1)	Built SR20 blacktop holding itself at 5k RPM Drove car for a 2 days after getting it out of the garage on a nice day for first time since winter. 3rd day of driving while heading to the car started idling at 2.2-2600 rpm, hunting. Limped it home and checked TPS voltage which was good. Checked maf by unplugging and car wanted to die so figured that was good. After a while of testing it went away and I took it for a spin in the neighborhood. This is when things went awful, car now revs to 5k regardless of throttle input. Ordered a new IACV gasket which is what I’ll pull and clean and test next, ordered an CTS aswell. Not finding any vacuum leaks. Any other suggestions? Am I clearly missing something?Mod list here * S13 SR20DET Black top * Block machined by D&D Engines * 86.5mm CP Pistons * Manley rods * King main and rod bearings * Tomei oil pan * ARP headstuds * Tomei headgasket * Brian Crower 272 cams * New Springs and retainers * New Rocker arm stoppers * New timing chain * New chain tensioner * Tomei 740cc injectors * Walboro fuel pump * Greedy style intake manifold * ISR FMIC kit * Flex-a-life dual fans * Tomei exhaust manifold * Garrett GTX2867r turbo Nismotronic tuned. Car has run great for some 8k+ miles now. Drove it all last season. Last edited by J_raw; 03-14-2019 at 08:56 AM..